Ask HN: What would you do with a Raspberry Pi?

The Raspberry Pi device is aimed at kids who need to look beneath the gaming layer and start learning to code. However, I'm interested in potential applications that a low-cost, low-powered SOC board could do.

So, playing to its strengths I thought of these two scenarios.

Turn any TV into a smart one - with a HDMI 1080P video outlet and using your telly remote (CEC) to control it, it seems an ideal candidate. Most TV's also have a USB port so it could be powered over that.

Remote displays. Now Apple have started to bundle Airplay mirroring, could be a cheap wireless display where cables cannot reach. Perhaps a cheap Nagios status dashboard for sysadmins.

I don't think it's powerful enough to drive an MS Kinect.

Does anyone else care to share ideas?