Usage share of iPhone/iPod touch/iPad for iPhone apps in 2012
Are there statistics about which iDevices(iPhone3G, iPhone3GS, iPhone4, iPhone4S, iPod touch 3rd, iPod touch 4th, iPad1, iPad2, iPad3) are used to use iPhone apps(not iPod apps) in 2012 or recent days?

I want to know about that to decide which iDevices should I test with.

Usage share of iPhone/iPod touch/iPad for iPhone apps in 2012
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Are there statistics about which iDevices(iPhone3G, iPhone3GS, iPhone4, iPhone4S, iPod touch 3rd, iPod touch 4th, iPad1, iPad2, iPad3) are used to use iPhone apps(not iPod apps) in 2012 or recent days?

I want to know about that to decide which iDevices should I test with.
