LG Quantum Windows Phone Price AT&T. Technical Details : 3G-enabled Windows Phone 7 smartphone with 3.5-inch touchscreen and slide-out full QWERTY keyboard; Windows Phone 7 OS provides easy access to social networking, personal/corporate e-mail, office apps, Xbox LIVE games, streaming media, and more; 5-megapixel camera with HD 720p video capture; 16 GB internal memory; Wi-Fi networking; Bluetooth stereo music; GPS for navigation and location services; Up to 6 hours of talk time, up to 350 hours (14.5 days) of standby time; released in November, 2010; What's in the Box: handset, rechargeable battery, charger, USB cable, stereo headset, quick start guide. Get special price for LG Quantum Windows Phone Price AT&T from Amazon.