While it already made the rounds at the 2012 Consumer Electronics Show, Sony and AT&T made things official today for the Xperia Ion. It is coming exclusively to the carrier starting June 24. Available for $100 on the usual two-year contract, Sony’s first LTE device packs a 4.6-inch (1,280-by-720) “Reality” display, 1.5Ghz dual-core processor, 12-megapixel main, 720p front-facing cameras, and 16GB of memory via microSD. It is also PlayStation Certified. AT&T will make the Sony Xperia Ion available through its regular retail channels on June 24.