UPDATE: Read my full Insignia NS-CNV10 review.
I've been spending the past few days getting to know the Best Buy Insignia NS-CNV10 GPS. This 3.5" model, like its bigger brother, sports text-to-speech, a cellular connection, Google Local search and no connection fees for the first year. The 4.3" model is pictured above, but except for the phone button (Bluetooth is found only on the NS-CNV20) it gives you a good idea of what it looks like.
The Insignia appears to utilize deCarta's Connected Navigation (CNAV) service. So far, the device has been fairly intuitive and has done a good job of navigation, recalculating quickly whenever necessary. And I love having Google Local search at my fingertips. I also like being offered multiple route options, though it sometimes takes a couple of steps to get to them.
is a member of the high-end nuvi 7×5 series, a second-generation nuvi 700 line that adds lane assist, 3-D buildings and lifetime NAVTEQ traffic to an already significant feature set. The 755T has a 4.3″ wide touch-screen, pre-loaded maps of the U.S. and Canada, 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.” 
has gotten a lot of coverage for its hip factor, though I assume its appeal is limited to fans of the 
a wide-screen version of the Maestro 3210. Other than bumping the screen to 4.3", it offers the same feature set including pre-loaded maps of the U.S. and Canada, 
is Navigon’s first generation mid-range GPS device. It features lifetime traffic, Zagat ratings and the reality view / lane assist feature for major highway interchanges, as shown above. It also has a 3.5" touch screen, maps of the lower 48 United States, and text-to-speech, so you’ll get "turn left on Oak Street" rather than just "turn left." 
