The whole "iOS thing" fosters consumer culture in the field of computing like nothing else before. You don't start programs, you "launch apps". You don't see files or processes, you see only beautifully polished tiles. The basic granularity of your computing experience becomes the "app".

On top of that, each app lives in its own context and can hardly be "pipelined" with other apps to achieve something creative. It's the death of creative computing.