On a more serious note, I really don't see why everyone is getting so excited about their devices becoming dumb terminals and giving away their power to corporations that own the cloud.
I shudder at the thought of powering on a ChromeOs device and having to log in to Google to be able to do anything.
Not sure about the Windows era being over, but we're certainly entering a Google era and it's getting really difficult to ignore Google. Both of the Opera browsers on my phone are locked into Google search (previous versions had mulltiple providers, Amazon, Wiki, etc). Firefox comes with Google. Chrome comes with Google. Android is tightly integrated with Google. A lot of people use Gmail and Gdocs due to lack of alternatives. A lot of websites use a Google powered search.
I'll never buy an Android device because I'm getting weary of Google: they're becoming too powerful and control too much information.
Furthermore, they are competing unfairly: they use their ads profits to dump products on the market at very low prices or for free, killing the (possible) competition. For now this has been good for the consumer, with two observations: you're not getting something for free, you're paying with your privacy; once google gets big enough it may get to be the only player in some markets and that always ends badly.