American fans of giant smartphones haven't lately had the giant selection of devices to match, but AT&T can at last offer a little diversity: the LG Optimus G Pro is now on sale at the carrier's online and retail stores. For $200 on contract or $550 contract-free, US residents can get a 5.5-inch flagship that's about as full-featured as its Korean sibling, minus the spare battery. Just be aware of the timing before picking one up. While we doubt that AT&T plans on selling a lot of G Pros as Mother's Day gifts, we're sure at least a few moms would gladly take a quad-core Android powerhouse in lieu of flowers.