Today only, September 5, 2011, CowBoom has Contract-Free Used Apple iPhone 4 16GB for AT&T Wireless in Black, model no. MC318LL/A, for $364.99. Shipping adds $5. This is a Pre-owned and does not include many of the accessories that originally comes with the device when new.

The iPhone 4 features an Apple A4 processor, 326-ppi (pixel per inch) Retina 3.5″ display running at 960×640, gyroscope, front- and rear-facing cameras, 5-megapixel camera with LED flash, 720p video capture at 30 fps, 802.11n wireless networking, dual microphones, access to hundreds of thousand apps and much more.