Combine a GPS receiver with an FM radio transmitter for your MP3s and what do you get? As of now, you get the Qstarz BT-Q920. We probably wouldn't care as much if it weren't as small as it is, somewhere around two square inches (or 2.1 x 1.7 x 0.8 inches to be exact). That puts it in the same ballpark as the Mio DigiWalker that we looked at earlier. Its battery should be good to go for around 12 hours of use.
Now, we've made similar comments before, but is there still a market for these little hand-held GPS devices? If phones are going to be implementing GPS technology more and more, as is the case with the Helio Drift and on the Samsung m610 using Sprint's Power Vision service, why would you want to carry around yet another gadget?