All the MIX10 keynote & session videos are now available at http://live.visitmix.com/videos. Each session will eventually be offered as a high-quality WMV, a regular quality WMV, and as a MP4 file for mobile devices. For most sessions, the PowerPoint deck will also be provided.
To make it easier on Windows Phone developers, Charlie Kindel is keeping a list of all the Windows Phone ones.
Speaking about Windows Phone, Scott Guthrie had some fun on stage showing a Windows Phone 7 app that turned Microsoft CEO Steve Ballmer into a dancing marionette! Ballmer himself recorded the audio for it: “phone developers, phone developers, phone developers”