Filed under: GPSIf you've bought a GPS unit in the past year or two there are decent odds it's based on the SiRFstar III chipset, which has been about as good as it gets since it arrived on the scene a few years ago. Now there's a new chip on the block, SiRFprima, which could have GPS aficionados kicking those SiRFstar III units to the curb. The unit boasts "industry leading" GPS performance, and is the first of its ilk to be able to work with GPS and Galileo signals simultaneously. InstantFixII -- which promises 5 second start times -- is built in as well, along with 3D acceleration for the
