I used it this morning to guide me to work. I mean, I already knew how to get there, and, honestly, it's not exactly complicated. But it worked very well. It seemed confused as to my altitude, but never seemed to be off in the 2D realm. The software could use a little help, but it's just bundled with the GPS receiver, and wasn't really bad, either.

The GPS definitely speaks NMEA, and it's a serial-based Bluetooth device, so it should work with just about anything that's also Bluetooth capable, I'd imagine.

I don't know that I'm up to upgrading it, but my only other Bluetooth device is my laptop, so I suppose I could. If I do, I'll let you know.