Yet another U.S. federal agency has announced that it is abandoning RIM's wait for it beleaguered BlackBerry platform for iPhones and other devices. This news comes from Politico.com, which notes that up to 3,800 BlackBerrys will be swapped out within the next year at the Bureau of Alcohol, Tobacco, Firearms and Explosives. The transition for the feds will start soon, with March being the date set for replacing