In Short

The Xperia Ion is the first Sony smartphone to run on AT&T's LTE network. It's got a 4.6-inch 720p display, a whopping 12MP camera that can come awake from standby and take a picture in 1.5 seconds, 1GB of RAM, and a 1.5GHz dual-core CPU.  Shipping with Gingerbread sometime in 2012, we expect this one to be on the fast track for Ice Cream Sandwich.

The Ion is also a PlayStation certified device, and it will have access to the Sony Entertainment Network.