Using old redeployed PCs as thin clients is a great move, as previously mentioned, but it does have issues, namely:

1. They look bad
2. They make noise
3. They generate heat

This guy solves these issues by focusing on the cheapest and smallest PC that I’ve seen: the Raspberry Pi.  The idea is great but the application itself is brilliant.  An hour or work and the results?  A Windows 7 VM streaming 1080p video to an HD projector, controlled by a wireless keyboard and mouse.

No thin client on the market is smaller than this little computer.  Just imagine a lab full of them…