Facebook has already set up shop in North Carolina and Oregon, but it's heading to Iowa for its next -- and biggest -- data center. According to the Des Moines Register, the town of Altoona will be home to a 1.4-million-square-foot facility (code-named Catapult), and it will reportedly be the "most technologically advanced center in the world." Why Altoona, you ask? The city is already home to seve