Attending TechEd 2011 in Atlanta? Why not check out the WP7 hackathon which will be hosted at the Omni Hotel on May 16th for 5 hours? Featuring experts in the community, developers (whether beginners or experienced) should not choose to miss out on this opportunitey if one can attend. C'mon - there's even food and beverages provided!
Products covered are; Microsoft XNA Game Studio, Windows Azure and Windows Phone 7. Not only this but 50 new unlocked Samsung Focus device are rewarded to the first 50 developers attending this event who submit their apps to the Marketplace and enter their submission to the WP7 User Group developer sweepstakes.
There are a limited number of available slots (300), so RSVP ASAP. Oh, and you have to bring your own laptop too. Register to the event using the source link below.