I've simply been amazed by the quality and speed of Onlive, as this technology has the potential of making hardware requirements irrelevant to the average user. However, at the moment Onlive is only for remotely controlling video games, and not desktops or other devices in general.

I'm in pursuit of software or services that can accomplish this as well as Onlive does. I need:

• viewer (client) program portability (able to run on a USB stick)
• DirectX, OpenGL / full-screen game compatibility on the server side.**
• Gaming-acceptable color/scaling quality and responsiveness.

I have a very powerful desktop at home and I want to be able to access this raw power from any other computer that I stick my USB into (in the same way Onlive gives gamers use of their powerful servers)

What software/services has most of the above?
NOTE: please specify what features your suggestion doesn't have.