i was using ATT wireless and never has a issue with when i was in 3G area (when i had 2+ bars), thats was columbus area. it will vary from area to area. its when i was in 2G or below i had connection issues. i know sprint is coming out with the new wimax in some major cities. maybe a good option to look into if your in one of those cities
Right now, Sprint is the only carrier in the United States to offer a 4G wireless signal. With speeds of up to 12Mbps and averaging 2-4Mbps, For those who want speeds 3 to 5 times faster than competing carriers offering 3G, you’re in luck if you live in one of the following cities where the service will roll out in 2009:
* Atlanta
* Charlotte
* Chicago
* Dallas
* Fort Worth
* Honolulu
* Las Vegas
* Philadelphia
* Portland
* Seattle
Sprint also recognized that their plans are timelined into 2010 with rollouts expected in the following locations:
* Boston
* Houston
* New York
* San Francisco
* Washington D.C.