Not to mention they already have the advantage of being **the** mobile platform for every business and government account of consequence. The costs of switching your enterprise mobile infrastructure from RIM's BES to Apple's....iTunes (?) makes no sense from a financial or logical standpoint.
FWIW, the only people paying attention to this article are the Apple fans who need something to cling to. Face it folks... Apple is never going to be a major player in the enterprise market.