I like the thin client approach. For everything but games RPD works pretty well, especially on local 100 MB connections. Now Jade Integration has taken the 'thin' approach to a new level with their Jack PC The Jack PC is a thin client condensed into a wall socket. It only draws 5W and can be optionally powered with 'power over ethernet'. The device is powered by an AMD Risc processor running Windows CE. I don't believe is supports VNC or remote X sessions, but there is at least one RDP Server project for Linux in case your OS preference slants that way.
For a guy who has more computers in his house than he will admit, the idea of condensing all that configuration and maintainence into a single server sounds more appealing every year.
This seems pretty cool, but I'll have to think about it for a bit. It reminds me of the Black Dog Linux Device a bit... Cool tech, but not sure how practical. Don't we just need some cheap virtual KVM hardware and a wireless connection?
how about create a pc which have the similar size as the jack pc