I'm further confused by this lack of a hard disk. Does the thing come with a WinXP install disc, to be installed on whatever hard disk you choose to install? Is it just regular Windows?

I noticed that the cases they were using look exactly like "Casetronics/Travla" mini-itx cases. Basically you have room for a mobo, the optical drive and a laptop drive. You could probably build the same box for less then 300 bucks. I would be very interested as to what the software options are though.