Issue I have personally noticed the most is in Transformers Earth Wars. When going to swipe up to switch out of the app in landscape mode, it will sometimes gray out the bar at the bottom. Turn off the display and back on into the app and it will sometimes let me close it from the side (normally the bottom of the phone) to switch out of the app.
Other than that, it looks like the keyboard issues have been resolved and I've been giving the iOS Keyboard more of a chance.
At the current pace of Public Betas, how may do we think we will see before the October release of the Gold Master? I was thinking we should likely get 2-3 more to try out.