Cool!

So what other hardware is required other than the empeg? What is its cost and its form factor? Would one need to hand-construct any sort of complex interface between the GPS module and the player, or is it a straight serial connection?

The reason I'm saying this, is that if such a thing were available for the empeg, I would seriously consider purchasing it and paying good money for it. This includes purchasing the necessary GPS interface hardware as well as paying Kim for a license of the software.