Nokia places a big bet on Windows RT; also see Surface Stats and Speculation: Not quite the disaster we thought it was?
"Here's what I know about the Nokia "Sirius."Nokia "Sirius" Preview | Windows RT content from Paul Thurrott's SuperSite for Windows
It runs on a quad-core Qualcomm 8974 (ARM) chipset and features a Screen: 10.1-inch, 1920 x 1080 IPS screen that features "outdoor readability." The battery life is rated at up to 10 hours. Weight is 1.3 pounds, and its .35 inches thick. There will be a few versions, including one with LTE, and the device features a 6.7 megapixel camera with Carl Zeiss optics, just like Nokia's Lumia 92x handsets. (Tom notes a 2 megapixel front-face camera but the material I've seen doesn't mention that.) Nokia plans to offer consumers unique companion experiences with Nokia apps across both Windows RT and Windows Phone 8."