somehow I get the feeling t-mobile will not be putting the antennas indoors and at low wattage. cell towers are everywhere including out in the burbs.5 GHz Wifi signals have little penetration outside of houses and occupies only a small section of the 5.8 GHz ISM band. But yes, this will only be an issue in urban situations... which are precisely the areas where 2.4 is most crowded and 5.8 most needed. But not much to be done about it, just noting.