Presumably rounding out the low end of Sony's newly prolific GPS lineup, the new NV-U51 does away with the traffic knowledge of its siblings, and instead takes the barebones approach to GPS. The 3.5-inch touchscreen unit includes the same "Gesture Command" interface functionality of the other units, along with a one month free subscription to speed camera locations. Otherwise, frills are nonexistent: there's 512MB of memory, enough to store a single region of mapping data, and a six hour battery. At least the unit manages to be a bit slimmer than most. Hopefully Sony also managed to slim the price down from that $500 they're asking for the NV-U71T -- we suppose we'll find out when this thing hits stores this December.