Today we look at the fourth Windows Phone 7 smartphone offered directly by a US carrier, the LG Quantum on ATT. The Quantum is the only hardware QWERTY Windows Phone (the Dell Venue Pro is sold by Dell and Microsoft stores but not T-Mobile stores). And that's enough to set it apart in an ecosystem where all Windows phones adhere to Microsoft's minimum specs and are sold at the same $199 price with contract.
The Quantum feels good in hand thanks to a soft touch finish and metal back. It's thicker and heavier than the Samsung Focus, and similar in size and weight to the HTC Surround that has a sound bar slider.
As with the rest of the Windows Phone 7 launch models, the Quantum has a 1GHz Snapdragon CPU, 3G HSDPA, WiFi, Bluetooth, a GPS and 16 gigs of storage. The phone shares the same 800 x 480 resolution as the other models but it's a smaller LCD at 3.5".
Here's our video review, and don't forget AT&T is having a Windows Phone 7 BOGO deal for Black Friday!
-------------------- Lisa Gade Editor in Chief, MobileTechReview