For that price it's probably a 700 series. I bought the original 701 with the small screen and Linux. It definately does run Windows. Someone pointed out NLITE to help build a smaller XP installation (worth it due to the 4gb SSD on board) My XP installation only takes 300mb.
I run oziexplorer, Garmin mobilePC and all my maps on a 16gb SD card in the expansion slot. I have a sirfIII based USB GPS receiver connected to a long USB extension cable that runs under the carpet in my d2 to the cargo area. I then plug the GPS into that and it's cable and pokes up through the top of the rear door and the GPS mounts on the roof at the rear of the car.
I made some velcro straps that secure the eeepc to the centre of the top of the dashboard so both driver and passenger can operate the PC.
I'd buy a 900 series for the bigger screen, but the 700 is just fine. Been on many trips and hasn't missed a beat. If you're in melbourne I can help with the "NLITE'd" XP cd.

