GameStop offers the no-contract, used Apple iPhone 3G 8GB for AT&T in Black for $39.99. Coupon code "SAVER" bags free shipping. That's the best price we've seen for any no-contract Apple iPhone 3G 8GB phone. (It's also $75 below the lowest total price we could find for a no-contract used unit elsewhere.) It features a 3.5" 480x320 multi-touch display, 3-megapixel camera with video capture, Bluetooth, GPS, and more.It features compatibility with AT&T's 3G network, built-in GPS navigation with Google Maps, a 3.5" 480x320 touchscreen, five hours of talk time, and more.

Of note, no warranty information is provided. Also, this item may show scratches, scuffs, and other signs of wear-and-tear.

Update: Back in stock.