Amazon offers the Nokia Lumia 520 4G 8GB Windows 8 Prepaid GoPhone for AT&T for $39.99 with free shipping. That's the lowest total price we could find by $9, although we saw this phone for $7 less two weeks ago. (That price was only offered for two hours, though.) It features a 4" 800x480 IPS touchscreen LCD, Qualcomm Snapdragon 1GHz dual-core processor, 512MB RAM, 8GB internal memory, 5-megapixel rear camera, microSD, micro USB, Bluetooth 4.0, and Windows Phone 8 OS.