Old "internet appliance" converted to touchscreen PC terminal, I've been using it with Mister House for the last few years, but can easily be flashed back to stock firmware or one of the others. I know a few people are using it with Homeseer

Wikipedia here:

MrAudrey the Mr House companion firmware...

Other interesting sites:

I have three of them, all in white (Linen), with keyboards, the tricky to get hold of 3com USB network adapter and a modded UK powersupply (no official UK/euro PSUs were ever made).

All work fine, in original cartons, only selling due to downsizing.
Make me an offer.