It's easy to point out that Apple will have a press event in September, it's just a matter of pointing out when exactly.
Everyone wants a slice of the App Store pie. Even Glu and Zynga. So it wouldn't be crazy if someone would take an idea off someone else's app and adapt it on their own tower management app, would it?
You haven't forgotten the iCade, have you? The somewhat out-of-reach arcade cabinet that gives the iPad tangible controls? Well, ION has announced the new less-arcadey iCade Core and the portable iCade Mobile, roping in iPhone and iPod touch users in for the fun.