I have had AT&T since the iPhone debuted, switching from T-Mobile and paying a $175 Early Termination Fee. Owned the original iPhone, 3G, and have had a 4 for 2+ years now, fully planning to upgrade to an iPhone 5/the new iPhone in Sept. In the past, the big knock on AT&T was dropped calls, while the big knock on Verizon was no simultaneous data and voice along with generally slower 3G data speeds (and I have the 4 with AT&Ts 3G not the iPhone 4S with AT&Ts "4G"). I am wondering with the iPhone 5 expected to get LTE like the new iPad, how Verizon and AT&T will compare and whether people expect Verizon to offer simultaneous voice and data, a feature I use often. I have seen some data that suggests that AT&Ts LTE is slightly faster than Verizon's but one big problem is that AT&T hasn't rolled out LTE to Denver or announced when they might, which IMHO is a huge mistake given the size of the market. AT&T also has the issue of more dropped calls, something I'd gladly put behind me. As far as voice and data, a friend of mind with an HTC ThunderBolt said that he can use voice and data on his at the same time on Verizon, because it is LTE, something Verizon phones on their older CDMA 3G networks couldn't do, and obviously still won't be able to on an iPhone 5 if you are out of LTE coverage areas. As far as price I'm looking at the same costs, 4GB shared data plus 2 smartphones is $150, regardless of carrier, and slightly cheaper than I pay now. The only bummer is that AT&T will charge me a $135 ETF fee for leaving. So a bit less than an extra month of service and I will have to get me wife a new phone to switch even though her iPhone 4 is only 15 months old and she doesn't care about new tech. Anyone in the same boat or using a Verizon LTE phone, please chime in, thanks.