AT&T has promised to bring LTE connectivity to five U.S. cities this summer: Dallas, Houston, Chicago, Atlanta and San Antonio.
LTE, or Long Term Evolution, is a mobile network technology standard that enables very fast data transfer, which should reach the requirements to be called a 4th generation mobile networking standard (4G) in later stages of development.
AT&T also announced it plans to launch 20 4G devices (AT&T counts both HSPA+ devices, such as the HTC Inspire, and LTE devices as 4G devices), some of which will be LTE-capable, by the end of 2011.