UPDATE: Since several years have passed, I decided it was time for an updated version of this post!
GPS receivers are becoming more feature-rich every year. But what works and what doesn't? Here are five features that you just don't need.
- Traffic – I recently saw that 50% of people with live traffic on their GPS don't use it. Great idea, but it ain't ready for primetime yet. You'll get plenty of erroneous reports, and you'll also come across lots of bottlenecks that go unreported.
- FM transmitter – Useless in urban areas where the FM band is crowded, but of possible interest to the 0.1% of the population living in rural, mountainous areas.
- MP3 player – As much as I like seeing the track and artist name on my GPS screen, the tinny speakers aren't made for listening to music. If your GPS has an audio out jack, and your receiver an audio in, you could connect them, but then you'd have cables strung everywhere. TomTom has an iPod control cable for their GO units, but there's that cable thing again. A car stereo with Bluetooth and a nuvi 7x5T unit might give you a better option, but lacking the former I haven't tried it.
- Bluetooth – When it does work, it generally sounds horrible for the person on the other end of the call. Exceptions — my experience with the TomTom GO 730 was better than most, but what I'm really impressed by is the nuvi 7x5T I've been testing. It won't do everything I wanted it to, but the sound quality in early use has been great. Stay tuned for a full report. UPDATE: Bluetooth that works.
- 3D buildings – Useless eye candy.
turned out to be one of this year’s Black Friday stars. Aggressively priced, the ONE 125 is identical to the 
updates the 
in for testing, and I thought I'd share some initial impressions since this unit is due to become available in the next week or two.
is a member of the second-generation nuvi 700 series family, adding lane assist, 3-D buildings and lifetime NAVTEQ traffic to an already significant feature set. The 765T has a 4.3″ wide touch-screen, pre-loaded maps of the U.S. and Canada, stereo Bluetooth and text-to-speech, so you”ll hear “drive one-half mile, then turn left on Oak Street.” instead of just “drive one-half mile, then turn left.” 
updates the 