The key difference is if you cut out iOS 4 only users you're eliminating at most 2-3% of your market. If you were to try and do the same thing with Android and require ICS or higher you would be blocking off 50%+ of your market.
There is little expectation of iOS 4 support at this point, because users who purchased an iPhone in the last 4 years don't have to use it. The same is hardly true for Gingerbread. Most of the phones that shipped with that half-baked OS will have it until they're retired into a drawer somewhere.
There is little expectation of iOS 4 support at this point, because users who purchased an iPhone in the last 4 years don't have to use it. The same is hardly true for Gingerbread. Most of the phones that shipped with that half-baked OS will have it until they're retired into a drawer somewhere.