Has anyone gotten a bluetooth GPS to work on the Surface Pro? I have a Dual XGPS150 I've used on an iPad that I'm trying to use but haven't had much luck. Dual says it works with "Windows" but they don't offer any more details than that. They do say the bluetooth stack has to support the Serial Port Profile and that may be what's getting me. I'd be willing to get a different GPS if I were sure it would work.