The device is said to have a 10.1" 1080p display, a Qualcomm Snapdragon 800 CPU, 32GB of storage, and a detachable keyboard/stand. A Sep. launch is "rumored."
"Don't do it, Nokia," BGR's Brad Reed advises. Windows RT hardware sales have been ugly, and one major OEM after another has turned its back on the ARM-powered OS, which can't run apps created for Intel/AMD-powered systems. Moreover, companies not named Apple have generally had a rough time selling ~$500 tablets.
The Verge reported in July Nokia was working on an RT tablet earlier this year, but cancelled the project to work on a cheap Win. 8 tablet.
Meanwhile, Google (GOOG) has blocked a YouTube Windows Phone app built by Microsoft (no Google-made app exists), citing TOU violations. Redmond isn't amused, and has fired off a harsh missive titled "The limits of Google's openness."
In the past, Google has justified its lack of WP app development by saying it "will go where the users are." It's also possible Google doesn't want users to go to a rival mobile platform that has Bing as its default search engine.