We discovered the other day that in some cases, after closing an "in-app" advertisement, that the touch controls were completely lost. This was tested using iOS 4.0 on a second generation iPod touch.
As of right now, we are not sure if it's iOS 4.0 but the error is not happening on iOS 3.1.3 using a first generation iPod touch.
We would like to ask for your help on this one because to be honest, we're pretty stuck right now on what's triggering the issue. Would you please mind to click on any "in-app" advertisement in BETA 2, click the done button in the top left, and see if you still have touch controls?
It would also be great if you posted your device model and what version of iOS you're running to help us further investigate this issue.
We have a hint on what the problem could be, but we're not sure if it's device specific or even based on what iOS version you're running. Thanks guys; we really appreciate all of your help!