How do I target an app to work on ipad 2 or newer (not ipad 1) before submission to appstore?

Question

My app is for the iPad 2 only. I have seen other answers involving setting the UIRequiredDeviceCapabilities key, but I need to exclude the iPad 1 because of the CPU power, not any specific hardware feature.

I would like the app to show up in the appstore for people in the future also (iPad 3 etc. should have equal or stronger processor than 2), so I need only exclude iPad 1 specifically.
Any ideas?

Answer 1

Set UIRequiredDeviceCapabilities to require front-facing-camera. I don't think they are going to cut down on features. There isn't any other way, it seems.

Answer 2

There appears to be no Processor_MHz_GHz, CPU_core_count or GPU_shader_count keys currently documented for the UIRequiredDeviceCapabilities plist. And Apple currently appears not to allow adding more hardware restriction keys to existing apps already in the App store.

So you appear to be out-of-luck, if you don't want to risk requiring a camera. Or just selling a new app (not an update) to support hypothetical future products.

ADDED/UPDATE (2012-September): You can now exclude a 1st generation iPad by specifying iOS 6.x as the minimum Deployment target in your build settings, since an iOS 6 update is not offered by Apple for the 1st gen iPad, whereas an iPad 2 and newer will run iOS 6.