The iPad could potentially cause serious havoc for US data networks, say people writing on behalf of the Federal Communications Commission. Updating an official blog, Phil Bellaria, director of scenario planning for the Omnibus Broadband Initiative, and John Leibovitz -- deputy chief of the Wireless Telecommunications Bureau -- observe that the device may put extra strain on already problematic networks. "With the iPad pointing to even greater demand for mobile broadband on the horizon," the pair write, "we must ensure that network congestion doesn't choke off a se
