I've never heard of anyone ever getting "Banned" for running OS X in any sort of VM, or on non-Apple hardware for that matter. The Air isn't "useless", but it

I've never heard of anyone ever getting "Banned" for running OS X in any sort of VM, or on non-Apple hardware for that matter. The Air isn't "useless", but it isn't really intended as a development machine. It prioritizes size and battery life over horsepower.