You can now preorder the Nokia Lumia 1520 phablet from AT&T for $199.99 on contract or $584.99 contract free. The device is available in red, black, white and yellow. The device will be shipped over to you on November 19th and is exclusive to AT&T in the U.S.
The Lumia 1520 is the first Windows Phone device with a full 1080p HD display and the first to feature a quad-core processor. It will also be the first handset to run Windows Phone 8 Update 3 (GDR3). The device has a 6 inch display, up to 64GB of internal storage which can be expanded through microSD, a 20 megapixel PureView camera with Carl Zeiss optics capable of 1080p video capture, wireless charging and a quad-core Snapdragon 800 processor with 2GB of RAM.
However keep in mind that, AT&T's version of the device only comes with 16GB of native storage, and a 32GB model is supposedly on its way. However since you have a microSD card slot, you can add an additional 64GB of storage space if you need to.
With a purchase of the phone, the Microsoft Store is offering $70 of free Windows Phone Store credit, a free flip cover and Halo: Spartan Assault. AT&T will give you $20 of Windows Phone Store credit, 50GB of cloud storage with AT&T Locker, and Halo: Spartan Assault.
source - AT&T | Microsoft