The Doppler-based Pocket Radar has the same degree of accuracy as traditional, bulky radar guns (within 1.6km/h) in a unit that’s small enough to fit in a shirt pocket. It can also take up to 10,000 speed measurements on one set of AAA batteries. Of course, it’s probably going to be a lot more expensive for makers to tinker with when it arrives early 2010. [Pocket Radar via BusinessWire via Gadget Lab]