A calendar that was part of the info release shows that next month, AT&T will have a production launch of its LTE service followed by a rollout of the service in 10 markets in September. A power point presentation discusses an Apple iPad 3 launching in the fall or next March. And since this is written under the heading "LTE status", it would probably not be straying too far to say that the iPad 3 being discussed features LTE 4G connectivity. Speculation from the tablet's supply chain indicates that the Apple iPad 3 might include Retina Display and a faster processor, besides the 4G connectivity.
three phases to the carrier's LTE deployment with the Apple iPhone 5 expected to launch during the second phase in September. It would also appear that AT&T will have its own LTE enabled handsets launching in September as well.
What is interesting is that AT&T appears to be rolling out its LTE platform in the same manner that Verizon did, with dongles and 4G Netbooks testing the system first before allowing 4G phones to use the pipelines. Because Verizon has had a head start over AT&T, the latter is moving faster than Big Red did in making this come to fruition. But you also must remember that all of this conjecture and speculation has come from hacked data and information that was never meant to see the light of day.
source: iFans via RedmondPie