Seattle actually has some LTE from AT&T active around the Microsoft Campus in Redmond. I would guess Seattle, Salt Lake, and Miami are next on the list for LTE from AT&T even though they aren't announced yet. I know work on towers is going on in Philly.
Fiber backhaul for Verizon in Southern Illinois in 2013 - about time.
iPhone 4 on AT&T:
One strange thing I've noticed with an AT&T iPhone vs. a Verizon one. Is that iMessages are less reliable on AT&T. I know it's not a big deal because a minute later or so messages will be sent as SMS. But never the less, it's strange, Verizon iPhone iMessages went through 100% of the time. AT&T iPhone iMessages go through...I'd say 80-90% of the time.
I did read somewhere that it doesn't matter if you're on Wi-Fi, AT&T still sends iMessages over their network.
I never have issues with any text messages on imessage. :/ Sounds like a phone issue. iMessage requires a DATA signal, or it won't use it.
I disabled iMessage, i just didn't like it.
Another plus I've found with it, when you text someone new you can tell if they to have a iPhone.
I have friends on Verizon, and I feel like I always have to have them repeat what they are saying, constantly. I'm not sure if it's their choice of phones or the network, but it has been this way for years.
And once there is VoLTE, I'll evaluate then how AT&T and Verizon are on build out. So far AT&T's HSPA to LTE strategy is working for me. I don't need ridiculous LTE speeds for my needs.
And from what I can tell, MTS/Reliance CDMA/ Tata indacom are the CDMA carriers and they are even better in rural areas since they use 850 frequencies like at home. EVDO Rev B is even being deployed! I left my iPhone at home so I can't test the CDMA networks here.
US cell service sucks in comparison. Overpriced too. 1GB of 3G can be had for less than $5 on the big 3 networks, and less than 1-2 dollars on a network like Aircel. Oh and voice cals back to the USA are about 12 cents a minute. ((Of course as a whole, Indians are paid so much less than US citizens, $5 can still be a hurdle for some))
AT&T Network - Hartford, CT Area----Comcast Internet - WTF! CT USA to a server in Rome, Italy!