Popfly, which requires Silverlight 1.0 Beta, is the fun, easy way to build and share mashups, gadgets, Web pages, and applications. Popfly was released today as a private Alpha release. Popfly consists of two parts:
Sign up for the waitlist and you’ll automatically receive a notification for joining the Popfly community in the future.
Enjoy,LorinSilverlight SDK Team
BTW, you can play Whack-a-Dev, courtesy of the Popfly team: