Best Buy has begun selling the two-year old 8 GB iPhone 3GS (Best Buy link) for free today. The deal is only valid with a new two-year contract from AT&T and you must purchase one of these in-store - orders cannot be placed online. Previously, the iPhone 3GS was available at a very low cost of $49 (again with a two-year contract). 

Just to refresh your memory - the iPhone 3GS sports a 480 x 320 resolution display, a 3-megapixel rear-facing camera, built-in Wi-Fi and Bluetooth support, and voice control capabilities. 

Are you going to think about picking one of these up?