Check another North American carrier off the list as AT&T has launched the Samsung Galaxy S3 today. The phone is available online and in stores starting at $199 for the 16GB model. The Galaxy S III is the latest flagship device from Samsung and features Android 4.0 Ice Cream Sandwich, a dual-core Snapdragon S4 processor, and LTE support. We had nothing but the nicest things to say in our full review of the handset, and we’re sure those heading out to pick it up won’t be disappointed. Be sure to sound off with your thoughts below.