It looks like AT&T is looking to use 2.3GHz bands reserved for Sirius radio. Those in the WiFi space know that Terrestrial repeaters of Sirius radio signals are a major source of outdoor interference - but those repeaters only existed in dense cities. Now with that spectrum moving to 4G Basestations we will see much more interference in on open areas (like those we like to fly in). This will likely raise the noise floor and reduce the range and reliability of communications in 2.4 GHz. 72 MHz anyone?