The next beta version of iOS 7 for iPhones and iPads is rumored to be coming very soon. A report has it on July 8th. According to BGR and their “trusted sources” the new iOS 7 beta will be coming to developers and carriers for testing on the same day.
Apple has so far released beta builds of iOS 7 on Mondays. If version 3 follows suit ti will come out just two weeks after version 2. It will also be a week ahead of time from when iOS 6 beta 3 was released last year on July 16th.
The most recent beta brought iOS 7 to the iPad, so it’s reasonable to think that the new version will support all compatible iOS devices. Apple is still refining the design elements with the goal of making a more cohesive experience across all their devices.