The 30-day Samsung Galaxy S III challenge is getting close to being over, and everything continues to be good.  I've really enjoyed the battery life on the phone (that big 2,100 mAh battery is a nice one), and the HD display is fantastic.  I've had a slight bit of lag here and there, but overall, the US Galaxy S III continues to be my favorite Android smartphone.  It offers an excellent blend of performance and software features, making it the flagship 'droid for the mainstream consumer (which continues to be a very important demographic).  Will Galaxy S III outlive the 30-day challenge?  Stay tuned!