5mbps for HD. Thats what 1280x720?
I would imagine most people around the world wont have a connection of 5mbps stable all day, I know I dont, I get about 7mbps, but not at peak times. I'd be lucky to get SD in the evenings.
I can't imagine a server having the processing power for modern games and pump it out to every one, only costing around £40 a year.
I'm not convinced, this could slow progression of the gaming world too. I like my gaming PC and being able to play at high res.
What about user mods? What about sitting there knowing your hard earned cash and build time has gone into the awe that is being generated in realtime in front of you.
It wont be the same.