HP rx5910 3.5" iPAQ Travel Companion

Compact. It has all the features of a Ipaq PDA. This one came with the car mounting hardware. Windows 5 isn't all that different from what came on my Ipaq 2210. The windows software is pretty easy to use

Tom Tom. I'm still looking for software to replace it that doesn't cost an arm and a leg. It takes a very long time for the GPS to lock. It doesn't (At this time) interface with any of the Geocaching software I use and I'd bought it for Geocaching...

Fast fix (cold start upto 1 minute, warm just a couple seconds), PDA/GPS communicates well ; Screen is big and comparable to stand alone units, car holder does an excellent job. This is just a great unit

TomTom software is little outdated (even after the update from HP website that was released in April 2007), may have to press the on/off button 2-3 times before unit turns on (no big deal to me)