Nokia is pinning its turn-around story on the Lumia 800, what it calls a “hero device” that will be sold by 31 operators around the world initially. The Lumia 800 strongly resembles the MeeGo-powered N9, but runs Microsoft’s Windows Phone 7.5 Mango operating system. It is housed in a polycarbonate shell that is milled from a single block of material. It includes a 3.7-inch WVGA AMOLED display and is driven by a 1.4GHz single-core SnapDragon processor with 512MB of RAM and 16GB of storage. The camera includes Carl Zeiss optics and captures images at 8-megapixels. It features autofocus, LED flash, and video capture at 720p HD. It also includes exclusive Nokia-developed Nokia Drive and Music applications, and the ESPN Hub. It will ship in select markets in November for 420 Euro. Nokia also noted that it will be kicking off a huge marketing campaign — with the support of carrier and retail partners — in order to raise awareness of the new Windows Phone Lumia devices. It will be educating retail-level salespeople on the platform as well as the device, and will also air television commercials for the phone. Nokia believes the Lumia device, and the 800 in particular, will help resurrect its flagging cell phone business.