I'm in a bit of a quandary. I created an Adobe AIR app which supports iPhone 4 retina resolution, and iPad standard resolution (even on iPad 3). I assumed that Adobe AIR doesn't support iPhone 3 devices and resolutions, so I didn't even package Default PNGs for those old devices.
The app passed and went live in the store back in September. I think I was using AIR 3.7 at the time. Last week, I pushed through an update that uses AIR 3.9. That's been approved and is live.
Today, I find out that people with iPhone 3GS can download the game! 
Now first of all, how did it pass if iPhone 3 actually is supported?! The person who downloaded it told me that only a portion of the screen is visible (of course! iphone3 is lower res than my app is set to!)
So beyond the shock of Apple not rejecting it or restricting it from download on low-res devices, how do *I* restrict it? I cannot find anything in iTunes to set this, and the only info I could find out there was using "iOS Keys" and finding a device feature only supported by iPhone 4 and up.
Anyone else encounter this problem? If I don't fix it quick, people will end up dinging me with 1 star ratings. The game is NOT meant to run on such slow hardware.
I appreciate any advice.