Adding to their movie and music downloading/streaming, Amazon has ventured into the video game business. Designed for the casual gamer, the beta Amazon Game Downloads has about 600 titles for $10.00 or less. They are also offering 30 minutes of play before you decide to buy. As a happy aside, you can get 3 freebies through February 10, Jewel Quest II, Build-a-lot and the Scruffs. The only catch is that the offer is only available in the U.S. for now.