diff --git a/CHANGES.rst b/CHANGES.rst
index 08efbbf24..78c178baf 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,19 @@
+Changes in synapse 0.4.2 (2014-10-31)
+=====================================
+
+Homeserver:
+ * Fix bugs where we did not notify users of correct presence updates.
+ * Fix bug where we did not handle sub second event stream timeouts.
+
+Webclient:
+ * Add ability to click on messages to see JSON.
+ * Add ability to redact messages.
+ * Add ability to view and edit all room state JSON.
+ * Handle incoming redactions.
+ * Improve feedback on errors.
+ * Fix bugs in mobile CSS.
+ * Fix bugs with desktop notifications.
+
 Changes in synapse 0.4.1 (2014-10-17)
 =====================================
 Webclient:
diff --git a/VERSION b/VERSION
index 267577d47..2b7c5ae01 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.4.1
+0.4.2
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 7067188c5..23ae5f003 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -16,4 +16,4 @@
 """ This is a reference implementation of a synapse home server.
 """
 
-__version__ = "0.4.1"
+__version__ = "0.4.2"
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 88eb51a8e..7df9d9b82 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -15,7 +15,6 @@
 
 """Contains functions for registering clients."""
 from twisted.internet import defer
-from twisted.python import log
 
 from synapse.types import UserID
 from synapse.api.errors import (
@@ -129,7 +128,7 @@ class RegistrationHandler(BaseHandler):
             try:
                 threepid = yield self._threepid_from_creds(c)
             except:
-                log.err()
+                logger.exception("Couldn't validate 3pid")
                 raise RegistrationError(400, "Couldn't validate 3pid")
 
             if not threepid:
diff --git a/webclient/app.js b/webclient/app.js
index 8d9b662ee..c091f8c6c 100644
--- a/webclient/app.js
+++ b/webclient/app.js
@@ -30,6 +30,7 @@ var matrixWebClient = angular.module('matrixWebClient', [
     'MatrixCall',
     'eventStreamService',
     'eventHandlerService',
+    'notificationService',
     'infinite-scroll',
     'ui.bootstrap',
     'monospaced.elastic'
diff --git a/webclient/components/matrix/event-handler-service.js b/webclient/components/matrix/event-handler-service.js
index 6f251eec5..e63584510 100644
--- a/webclient/components/matrix/event-handler-service.js
+++ b/webclient/components/matrix/event-handler-service.js
@@ -27,8 +27,8 @@ Typically, this service will store events or broadcast them to any listeners
 if typically all the $on method would do is update its own $scope.
 */
 angular.module('eventHandlerService', [])
-.factory('eventHandlerService', ['matrixService', '$rootScope', '$q', '$timeout', 'mPresence', 
-function(matrixService, $rootScope, $q, $timeout, mPresence) {
+.factory('eventHandlerService', ['matrixService', '$rootScope', '$q', '$timeout', 'mPresence', 'notificationService',
+function(matrixService, $rootScope, $q, $timeout, mPresence, notificationService) {
     var ROOM_CREATE_EVENT = "ROOM_CREATE_EVENT";
     var MSG_EVENT = "MSG_EVENT";
     var MEMBER_EVENT = "MEMBER_EVENT";
@@ -45,71 +45,6 @@ function(matrixService, $rootScope, $q, $timeout, mPresence) {
     var eventMap = {};
 
     $rootScope.presence = {};
-    
-    // TODO: This is attached to the rootScope so .html can just go containsBingWord
-    // for determining classes so it is easy to highlight bing messages. It seems a
-    // bit strange to put the impl in this service though, but I can't think of a better
-    // file to put it in.
-    $rootScope.containsBingWord = function(content) {
-        if (!content || $.type(content) != "string") {
-            return false;
-        }
-        var bingWords = matrixService.config().bingWords;
-        var shouldBing = false;
-        
-        // case-insensitive name check for user_id OR display_name if they exist
-        var userRegex = "";
-        var myUserId = matrixService.config().user_id;
-        if (myUserId) {
-            var localpart = getLocalPartFromUserId(myUserId);
-            if (localpart) {
-                localpart = localpart.toLocaleLowerCase();
-                userRegex += "\\b" + localpart + "\\b";
-            }
-        }
-        var myDisplayName = matrixService.config().display_name;
-        if (myDisplayName) {
-            myDisplayName = myDisplayName.toLocaleLowerCase();
-            if (userRegex.length > 0) {
-                userRegex += "|";
-            }
-            userRegex += "\\b" + myDisplayName + "\\b";
-        }
-
-        var r = new RegExp(userRegex, 'i');
-        if (content.search(r) >= 0) {
-            shouldBing = true;
-        }
-
-        if ( (myDisplayName && content.toLocaleLowerCase().indexOf(myDisplayName) != -1) ||
-             (myUserId && content.toLocaleLowerCase().indexOf(myUserId) != -1) ) {
-            shouldBing = true;
-        }
-        
-        // bing word list check
-        if (bingWords && !shouldBing) {
-            for (var i=0; i<bingWords.length; i++) {
-                var re = RegExp(bingWords[i]);
-                if (content.search(re) != -1) {
-                    shouldBing = true;
-                    break;
-                }
-            }
-        }
-        return shouldBing;
-    };
-
-    var getLocalPartFromUserId = function(user_id) {
-        if (!user_id) {
-            return null;
-        }
-        var localpartRegex = /@(.*):\w+/i
-        var results = localpartRegex.exec(user_id);
-        if (results && results.length == 2) {
-            return results[1];
-        }
-        return null;
-    };
 
     var initialSyncDeferred;
 
@@ -228,7 +163,12 @@ function(matrixService, $rootScope, $q, $timeout, mPresence) {
             }
             
             if (window.Notification && event.user_id != matrixService.config().user_id) {
-                var shouldBing = $rootScope.containsBingWord(event.content.body);
+                var shouldBing = notificationService.containsBingWord(
+                    matrixService.config().user_id,
+                    matrixService.config().display_name,
+                    matrixService.config().bingWords,
+                    event.content.body
+                );
 
                 // Ideally we would notify only when the window is hidden (i.e. document.hidden = true).
                 //
@@ -258,6 +198,9 @@ function(matrixService, $rootScope, $q, $timeout, mPresence) {
                     if (event.content.msgtype === "m.emote") {
                         message = "* " + displayname + " " + message;
                     }
+                    else if (event.content.msgtype === "m.image") {
+                        message = displayname + " sent an image.";
+                    }
 
                     var roomTitle = matrixService.getRoomIdToAliasMapping(event.room_id);
                     var theRoom = $rootScope.events.rooms[event.room_id];
@@ -269,22 +212,15 @@ function(matrixService, $rootScope, $q, $timeout, mPresence) {
                         roomTitle = event.room_id;
                     }
                     
-                    var notification = new window.Notification(
-                        displayname +
-                        " (" + roomTitle + ")",
-                    {
-                        "body": message,
-                        "icon": member ? member.avatar_url : undefined
-                    });
-
-                    notification.onclick = function() {
-                        console.log("notification.onclick() room=" + event.room_id);
-                        $rootScope.goToPage('room/' + (event.room_id)); 
-                    };
-
-                    $timeout(function() {
-                        notification.close();
-                    }, 5 * 1000);
+                    notificationService.showNotification(
+                        displayname + " (" + roomTitle + ")",
+                        message,
+                        member ? member.avatar_url : undefined,
+                        function() {
+                            console.log("notification.onclick() room=" + event.room_id);
+                            $rootScope.goToPage('room/' + event.room_id); 
+                        }
+                    );
                 }
             }
         }
diff --git a/webclient/components/matrix/notification-service.js b/webclient/components/matrix/notification-service.js
new file mode 100644
index 000000000..9a911413c
--- /dev/null
+++ b/webclient/components/matrix/notification-service.js
@@ -0,0 +1,104 @@
+/*
+Copyright 2014 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+'use strict';
+
+/*
+This service manages notifications: enabling, creating and showing them. This
+also contains 'bing word' logic.
+*/
+angular.module('notificationService', [])
+.factory('notificationService', ['$timeout', function($timeout) {
+
+    var getLocalPartFromUserId = function(user_id) {
+        if (!user_id) {
+            return null;
+        }
+        var localpartRegex = /@(.*):\w+/i
+        var results = localpartRegex.exec(user_id);
+        if (results && results.length == 2) {
+            return results[1];
+        }
+        return null;
+    };
+    
+    return {
+    
+        containsBingWord: function(userId, displayName, bingWords, content) {
+            // case-insensitive name check for user_id OR display_name if they exist
+            var userRegex = "";
+            if (userId) {
+                var localpart = getLocalPartFromUserId(userId);
+                if (localpart) {
+                    localpart = localpart.toLocaleLowerCase();
+                    userRegex += "\\b" + localpart + "\\b";
+                }
+            }
+            if (displayName) {
+                displayName = displayName.toLocaleLowerCase();
+                if (userRegex.length > 0) {
+                    userRegex += "|";
+                }
+                userRegex += "\\b" + displayName + "\\b";
+            }
+
+            var regexList = [new RegExp(userRegex, 'i')];
+            
+            // bing word list check
+            if (bingWords && bingWords.length > 0) {
+                for (var i=0; i<bingWords.length; i++) {
+                    var re = RegExp(bingWords[i], 'i');
+                    regexList.push(re);
+                }
+            }
+            return this.hasMatch(regexList, content);
+        },
+    
+        hasMatch: function(regExps, content) {
+            if (!content || $.type(content) != "string") {
+                return false;
+            }
+            
+            if (regExps && regExps.length > 0) {
+                for (var i=0; i<regExps.length; i++) {
+                    if (content.search(regExps[i]) != -1) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        },
+        
+        showNotification: function(title, body, icon, onclick) {
+            var notification = new window.Notification(
+                title,
+                {
+                    "body": body,
+                    "icon": icon
+                }
+            );
+
+            if (onclick) {
+                notification.onclick = onclick;
+            }
+
+            $timeout(function() {
+                notification.close();
+            }, 5 * 1000);
+        }
+    };
+
+}]);
diff --git a/webclient/index.html b/webclient/index.html
index d8b9c9535..bc011a6c7 100644
--- a/webclient/index.html
+++ b/webclient/index.html
@@ -41,6 +41,7 @@
     <script src="components/matrix/matrix-phone-service.js"></script>
     <script src="components/matrix/event-stream-service.js"></script>
     <script src="components/matrix/event-handler-service.js"></script>
+    <script src="components/matrix/notification-service.js"></script>
     <script src="components/matrix/presence-service.js"></script>
     <script src="components/fileInput/file-input-directive.js"></script>
     <script src="components/fileUpload/file-upload-service.js"></script>
diff --git a/webclient/room/room-controller.js b/webclient/room/room-controller.js
index 59274bacc..486ead0da 100644
--- a/webclient/room/room-controller.js
+++ b/webclient/room/room-controller.js
@@ -15,11 +15,21 @@ limitations under the License.
 */
 
 angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
-.controller('RoomController', ['$modal', '$filter', '$scope', '$timeout', '$routeParams', '$location', '$rootScope', 'matrixService', 'mPresence', 'eventHandlerService', 'mFileUpload', 'matrixPhoneService', 'MatrixCall',
-                               function($modal, $filter, $scope, $timeout, $routeParams, $location, $rootScope, matrixService, mPresence, eventHandlerService, mFileUpload, matrixPhoneService, MatrixCall) {
+.controller('RoomController', ['$modal', '$filter', '$scope', '$timeout', '$routeParams', '$location', '$rootScope', 'matrixService', 'mPresence', 'eventHandlerService', 'mFileUpload', 'matrixPhoneService', 'MatrixCall', 'notificationService',
+                               function($modal, $filter, $scope, $timeout, $routeParams, $location, $rootScope, matrixService, mPresence, eventHandlerService, mFileUpload, matrixPhoneService, MatrixCall, notificationService) {
    'use strict';
     var MESSAGES_PER_PAGINATION = 30;
     var THUMBNAIL_SIZE = 320;
+    
+    // .html needs this
+    $scope.containsBingWord = function(content) {
+        return notificationService.containsBingWord(
+            matrixService.config().user_id,
+            matrixService.config().display_name,
+            matrixService.config().bingWords,
+            content
+        );
+    };
 
     // Room ids. Computed and resolved in onInit
     $scope.room_id = undefined;
@@ -191,16 +201,20 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
                 // Notify when a user joins
                 if ((document.hidden  || matrixService.presence.unavailable === mPresence.getState())
                         && event.state_key !== $scope.state.user_id  && "join" === event.membership) {
-                    var notification = new window.Notification(
-                        event.content.displayname +
-                        " (" + (matrixService.getRoomIdToAliasMapping(event.room_id) || event.room_id) + ")", // FIXME: don't leak room_ids here
-                    {
-                        "body": event.content.displayname + " joined",
-                        "icon": event.content.avatar_url ? event.content.avatar_url : undefined
-                    });
-                    $timeout(function() {
-                        notification.close();
-                    }, 5 * 1000);
+                    var userName = event.content.displayname;
+                    if (!userName) {
+                        userName = event.state_key;
+                    }
+                    notificationService.showNotification(
+                        userName +
+                        " (" + (matrixService.getRoomIdToAliasMapping(event.room_id) || event.room_id) + ")",
+                        userName + " joined",
+                        event.content.avatar_url ? event.content.avatar_url : undefined,
+                        function() {
+                            console.log("notification.onclick() room=" + event.room_id);
+                            $rootScope.goToPage('room/' + event.room_id); 
+                        }
+                    );
                 }
             }
         }
diff --git a/webclient/room/room.html b/webclient/room/room.html
index fac7433a4..5265f42dd 100644
--- a/webclient/room/room.html
+++ b/webclient/room/room.html
@@ -133,7 +133,7 @@
                     </div>
                 </td>
                 <td class="avatar">
-                    <img class="avatarImage" ng-src="{{ members[msg.user_id].avatar_url || 'img/default-profile.png' }}" width="32" height="32"
+                    <img class="avatarImage" ng-src="{{ members[msg.user_id].avatar_url || 'img/default-profile.png' }}" width="32" height="32" title="{{msg.user_id}}"
                          ng-hide="events.rooms[room_id].messages[$index - 1].user_id === msg.user_id || msg.user_id === state.user_id"/>
                 </td>
                 <td ng-class="(!msg.content.membership && ('m.room.topic' !== msg.type && 'm.room.name' !== msg.type))? (msg.content.msgtype === 'm.emote' ? 'emote text' : 'text') : 'membership text'">