Best Buy Stores has Apple’s iPhone 4 8GB smartphone in white or black for AT&T, Sprint, and Verizon for $49.99 (contract-free: 599.99, carrier subsidized: 99.99 – 50 instant savings) with two service agreement for a limited time. [Store locator]

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.