Remember Google TV? Flash support on Android? How is Google Glass working out? What proportion of Android phones get regular OS updates, and how does that bode for Android TV updates?

Google's corporate culture is to move fast and break things. That works great for online services that you can iterate on rapidly and fix for everyone quickly, but once you sell a product to a consumer how does it get updates? How does it get fixed? How do you overcome a bad initial experience? Apple has faced all of these problems and over many years has built addressing them in to it's DNA, it's corporate instincts. Google has never had a good answer to these questions.