Walmart offers the 3rd-generation Apple iPad 64GB 4G + WiFi for Verizon in White (pictured), model no. MD365LL/A , or Black, model no. MC756LL/A, for $549 with free shipping. That's the lowest total price we could find by $50 and the best price we've seen for any new 64GB 4G iPad. It's 9.4mm thick, weighs 1.4 lbs., and features a 9.7" 2048x1536 Retina display, A5x dual-core processor with quad-core graphics, 5-megapixel iSight camera with 1080p video recording, front FaceTime camera, voice dictation, 802.11n wireless, Bluetooth 4.0, up to 10 hours of battery life, and iOS 5.

Update: It's also available for AT&T for the same price.