At PDC 2008, there was a booth for Windows Sensors & Location Platform (more here). I was lucky enough to snag one of the free development kits.
I’m running the Windows 7 build from the PDC, and it is very stable. I haven’t any problems with it so far. The main reason for me to use Windows 7 for for this API.
Setting up the dev kit was really easy. I posted my setup experience on the forums here. If you are having trouble installing, maybe this thread can help.
I just stumbled across this today: if you want to get your hands on one of these boards free you have one day left (closes Nov 19th, 2008) to get your entry into AeroXP.org (http://www.aeroxp.org/7-sensors).
Blair.