iPhone Dev Camp 2
As an attendee, you'll work with other developers to create new iPhone/iPod Touch apps, learn how to migrate Mac apps to the Apple handheld platform, and find out how to test and optimize your apps. If you're a Cocoa Touch developer, web developer, UI designer, or tester, this is the place to be the first weekend of August. The registration links aren't yet up and running, but be sure to bookmark the iPhoneDevCamp 2 site for future reference.
A big TUAW thank you to Raven for the tip!