Today, June 24, 2013, Apple released iOS 7 beta 2 including support for iPad and iPad mini. It seems that iOS 7 works with all iPad types despite the iPad 1 (first generation) as Apple has already announced: iPad 2, iPad 3rd generation and iPad 4th generation with retina display.
iOS 7 beta to is available as over the air update for iPhone 4, 4S and 5 and iPod touch (5th generation) and as download from the iOS Dev Center for all mentioned devices. However, iOS 7 beta can only be installed with an iOS developer account and on devices registered for a developer account. In the following you will find the complete overview:
Stay tuned! 😉