Just in case you missed (or want to watch again) my CodeRage 6 session on Windows Phone 7 Development with our Oxygene for .NET compiler (that powers Embarcadero Prism XE2) it is available now on YouTube. There are a few other short videos on our Oxygene channel of RemObjects TV, but this one is a great summary that goes into more depth than the others. This one explains the architecture of Windows Phone 7 development more, and shows a lot more advanced topics, including MVVM and Tombstoning. At the end a simple Twitter client is created.
More information on Windows Phone 7 development is in our Oxygene Language Wiki. Just look for the Windows 7 Primer.
I’ve used the YouTube annotations to let you jump to just the parts you want to see. Turn on annotations (lower right) if you don’t see them.
CodeRage requires the videos at 1280×1024, which YouTube doesn’t like a whole lot. It prefers the native 720p (1280×720). As a result it has stretched this video horizontally a little. So pardon the aspect ratio being off.