While the GPS is handy, I find myself looking up places that are no longer
there.  Look for a Radio Shack and sometimes you get a hair salon who took
over the lease since the data was updated. I must say that I always get
where I'm going with the GPS and sometimes even learn a new way to get
there, but it is not always as accurate as it could be.  I have a Nuvi 750
and I can play verbal instructions, MP3s, and audio books over the FM
transmitter.  That is cool and the GPS breaks in once in awhile with
directions and then back to your music. If it just had a microphone and
bluetooth, I would definitely upgrade so I could have hands-free phone. I
hooked up my Motorola SmartPhone to it and I can check voicemail over the FM
transmitter, but cannot speak back to it. I also like the on-road/off-road
option so you can carry it hiking.  Not as good as others for hiking, but
passable.  Also in busy metro areas while on walk-about.  I also have the VW
van icon and a very sexy Aussie lass(language setting) getting me where I
need to go.
Michael in San Antonio
91GL AT 'Gringo'
73 Beetle