I took the TechEd Australia app that I created earlier in the year, and modified it for the Build data stream (you can read my post-mortem of building the TechEd app here)
The Build 2012 application has a few nice features:
- Search for sessions by title, session code or abstract.
- View the sessions by schedule slot.
- View slides directly on your phone (once uploaded to Channel 9).
- Watch the sessions directly on your phone (once uploaded to Channel 9).
And of course, the application was built using the Infragistics NetAdvantage for Windows Phone controls.