Rating: 
Summary: hardware works fine, software......thats another story
Review: Pros:
compact unit, i like the car kit
i had no problem setting it up with my Palm m130
GPS was very accurate, acquiring took about 10-15 seconds, not bad at all, after that, it only acquired after losing the signal, which wasn't very often.
Cons:
the software! really awful when it comes to giving driving directions. for instance, it told me ways to go which were either impossible (like driving over water!), or using local streets when highways were more appropriate. too bad mapquest can't work with this. looking up the directions on the internet seems to be an unneccesary step, since the maps are already on the CD! highways that wind and curve were a problem, since it couldnt follow that accurately, and said 'off route'. also, a better piece of sotware would help with the refresh rate on the palm, which is ok if you dont load a big map (<100k) it's really a shame, since a better piece of software would make this useful
Rating: 
Summary: Don't Buy this at any price
Review: The software often picks route 100's of miles out of the way for no reason. You cannot pick your own route at all. The Navman 12v connector is VERY weak. Mine broke within a few days. The GPS pulls the Palm's battery down in no time at all - 2 or 3 hours. Navman's web site states the 12v cord powers the Palm too - not so according to their tech support. I have recently purchased a Magellan gold handheld GPS that works great. I can even drive Delorme software on the Palm from the Magellan. DON'T BUY THIS THING!
Rating:
Summary: trash
Review: this thing is trash. half the time the thing cant even figure out where it is. and when it does u drive a little farther and it gets lost again. Also it cant give you directions while you are on the road. to find directions you have to first use your computer and then transfer the directions to the palm. and I still cant figure out how to use my sd card with the product. I wish I could send it back.
Rating: 
Summary: hardware is fine, software [is bad]
Review: To start with the positive: The unit actually does a good job getting a gps position and displaying it on the map. I use it with the Palm m515 and it was a very tempting combination given the low cost of the unit (100 USD, now it's even cheaper). It came with a device for mounting it on the windshield of the car and a recharger that fits in the cigarette lighter and that all works fine.
It seems an obvious thing to combine a gps receiver with a color screen palm pilot that has both memory and processing power to do a decent job as a navigation device. However, the software is terrible. As noted by others, the Rand McNally software can only find directions if you are online, and it often picks strange routes. It will only do directions to and from a given address, not just a waypoint on the map. But the worst part is actually the part of the software that is installed on the Palm Pilot. It does not display simple (and useful) pieces of information such as instantaneous speed and direction (other simple gps units do without a problem). It frequently tells you you are off route even if you are not, and every single time I have arrived at my destination, the software has frozen up and crashed the Palm so I had to reset it through the pinhole in the back. I don't know of a single other Palm application that is this poorly written. I should say that if you just ignore the false 'off route' warnings (this requires you to have studied the directions in some detail before you go), it will guide you reasonably well to your destination (you'll know you have arrived when your Palm crashes). I have not had it give directions that were flat out impossible, just ones I wouldn't have picked myself. So it is reasonably useful. The mapping features are not bad, either. You can zoom in or out and recenter the map relatively quickly, and that is useful if you get lost. Which you probably will if you decide to go someplace new guided only by this unit... Addendum: inspired by another reviewer (thanks!), I bought the Delorme StreetAtlas USA Handheld 2004 software, and things work much much better.
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