The
Mr. handsfree Genious Car Kit (isn't that the best name) is strictly a car kit -- allowing you to mount your Treo and take calls via the speaker on Mr Genious. The
Seidio 2500M looks to be expandable to a full blown GPS system. Matter of fact, the 2500M looks to have the same components as the GPS version.
Haven't used either, but if you don't need GPS, then I would lean towards Mr. Genious. Besides being a sucker for good marketing;), I like the shape and build of the unit.
Perhaps, someone who owns them can offer some insight. I'd be curious to hear myself --
