Innovation on the OS level isn't a bad thing. The problem is that Android and its course are totally controlled by Google. Not that I see large amounts of innovation in Android, mostly I see things reimplemented and reinvented (see the vendor at MWC boasting their windowing system for Android.) The big thing going for it is that Google is behind it, which is also its biggest downside (Google is the only primary company behind it, and calls all the shots internally.)