Or just get a Nexus One or another Android 1.6+ phone with T-mobile with free navigation

Oh the Nexus One has a dash mount?

Soon as they make a phone with a 5" screen that's practical as a phone then I might consider using one for GPS as well. Till then I'll stick with a dedicated GPS with a nice large screen.

Jr.com will price match any online site.

The GPS unit in your car can only "speak" to it's own company's satellite. The satellites in turn "speak back" to the individual GPS units. That is why they were so expensive several years ago.

The bigger companies have more units communicating with the distinct possibility of overload or crash. This has happened many times recently with Garming and TomTom since they are the most popular. If too many people are using their GPS at the same time, the satellites overload and can actually crash into another planet, star, meteor or asteroid...or worsed case back down to Earth.

Also, the beams that are transmitted as the GPS units "speak" to the satellites can cause beam deflection errors which usually occur on bridges or the entrances to tunnels. Additionally, GPS radar microwave beams can be warped and/or "wrapped" from satellites that are about to transpond and overload because of too many people beaming to them at once.

I am MS Certified which is a huge accomplishment vs. the dumbed down standards it now takes to be an electrical engineer.

I have so much more knowledge. My knowledge is massive and huge compared to even an above average electrical engineer for example.

I called J&R and they sold me the 1390T for $219 with free shipping. Thanks Ben.

I am MS Certified which is a huge accomplishment vs. the dumbed down standards it now takes to be an electrical engineer.

I have so much more knowledge. My knowledge is massive and huge compared to even an above average electrical engineer for example.

badgerboy you were not even funny the first time you dissed peakmaster.