In part 2, the Groundspeak team discuss how they made design decisions (porting existing phone apps to WP7 or not), how they ramped up on the Metro user interface concepts, and how the designers and developers worked as a team.
Watch the video:
Developing the Geocaching application on Window Phone 7:
Groundspeak experience-part 1:
(The Geocaching story, multi-platform development and the demo of the Geocaching application on Windows Phone 7)