AT&T has LTE rolled out in several locations now. Any chance there will be a phone or two available to use this network? I can't bring myself to buy an HSPA+ since I know that it is already out of date with no hopes of future improvements. Basically, I don't want to settle since I know the new stuff has to be coming soon. No clue why neither the Galaxy II nor the iPhone 4s are LTE. Just seems dumb to launch with such a massive fanfaire and not really be worth the event.
I think AT&T has LTE in 5 markets now - Chicago, Atlanta, & 3 cities in Texas. At this point, you would probably be hard pressed to differentiate LTE vs. HSPA+ vs. WiMax in real-world performance. In fact, PhoneArena did a test several months ago and couldn't discern appreciable differences betwen them (http://www.phonearena.com/news/Verizon-LTE-vs-T-Mobile-HSPA-vs-Sprint-WiMAX_id16416). In their tests, Sprint (WiMax) edged out T-Mobile (HSPA+), and both were slightly faster than Verizon (true LTE 4G).
The Galaxy II & iPhone 4S aren't LTE because these early LTE chips are likely cumbersome, will drain your battery, run hot, and ultimately fail to deliver an optimal LTE experience. Additionally, some of the LTE chipset manufacturers are having problems manufacturing their next-gen LTE chips, so we may not see a wave of LTE devices until 3Q2012.