Best Buy via eBay offers the Microsoft Lumia 640 4G LTE No-Contract Windows Phone 8 for AT&T GoPhone for $29.99 with free shipping. That's tied with our expired mention from two days ago (which required in-store pickup) as the best deal we've seen for this phone. (It's also at least $18 less than you'd pay at a local retail store.) It features a 5" 1280x720 IPS touchscreen LCD, Qualcomm MSM8926 Snapdragon 400 1.2GHz quad-core processor, 1GB RAM, 8GB internal memory, front and rear cameras, 1080p video capture, Bluetooth 4.0, 4G LTE, 802.11n wireless, microSDXC card slot, and Windows Phone 8.1 OS with Lumia Denim.