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Jeff Bezos said the quiet part out loud — hopes that you'll give up your PC to rent one from the cloud
(www.windowscentral.com)
This is a most excellent place for technology news and articles.
You would actually need server racks at major ISPs colocated near customers (like netflix does now) to have acceptable latency. To have acceptable performance you would need a cheap small form factor PC, a monitor, a keyboard, a mouse.
None of this is free and if not fucked up on the software side would perform fine as far as normal computing tasks by itself.