In many parts of AZ (including my neighborhood) voice coverage is so
bad I usually don't even get a single bar. If I get a 3G capable phone
will my voice coverage improve? The coverage maps show almost no
coverage gaps for 3G but large gaps on the 'regular' coverage map.

btw... I also have Verizon voice (yes, I have 2 numbers, 2 carriers, 2
phones) and it is 100% almost anywhere I go in the USA and AT&T is
definitely WAY behind from what I've experienced. What gives?

Thanks for the help!