Just one week ago three Windows Phone 7 powered devices hit the U.S. market–the Samsung Focus and HTC Surround found a home in AT&T and the HTC HD7 teamed with T-Mobile.  Today the LG Quantum rounds out the AT&T trifecta of WP7 launch devices.  Nothing crazy here: 3.5 inch display, 1GHz processor, full slide-out horizontal QWERTY keyboard, 5 megapixel camera with auto-focus, flash, 16GB of built-in storage, and 720p HD video recording, and DLNA streaming support.  Plus 10 free apps will be waiting for you to download; they’re available through the LG app store within the Windows Phone Marketplace.  All this for $199.99 on a new two-year contract.  Shipping today.  Full PR after the break.

[Via Engadget] Continue reading LG Quantum lands on AT&T today for $199.99 →