With activation of a new 2-year voice and data plan, Best Buy offers the iPhone 4 16GB in Black or White for AT&T (it's also available in Black or White for Verizon Wireless) for $99.99 with free shipping. That's $47 under our June mention and the lowest total price we could find now by $99. It features an Apple A4 processor, 960x640 3.5" Retina display, gyroscope, front- and rear-facing cameras, 5-megapixel camera with LED flash, 720p video capture at 30 fps, 802.11n wireless, dual microphones, and more.