I just want to remark that the "OnLive" service doesn't work very good unless you are under optimal conditions (MHO: less than maybe 1% gaming population out there?), and the whole concept of cloud is more productivity-oriented that user-oriented.
AKA: not everyone wants his brain seized for optimal ads.

On a more serious point of view, we have finally the opportunity to use tecnology on our own, without the need for central servers: we don't need old-style terminals any more. Why would one be back to terminals for everything? Including gaming and "personal" office productivity?
If there are people that still think that being on your own is better than depending completely from some central authority, then cloud computing won't be excessively widespread for bitcoin to keep going