I have used google maps, live search and sprintnav. One thing I noticed is if I get a phone call while using google maps or live search it says that I need a data connection and the gps then disconnects. This morning I was using sprintnav and on my way to work my friend called and it never disconnected. I drove for about 22 miles and the gps worked perfectly while on the phone using my bluetooth headset. Pretty cool I thought, but again I am not a gps guru so this kind of stuff gets me excited.
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