This patent filling from 2011 shows Nokia playing with covers on their tablet once again, but this time with a integrated mechanical keyboard inside that could be folded in multiple ways, compared to example Microsoft Surface touch cover.
Since Microsoft announced Xbox Music for Windows Phone 8 the rumors have been that there would be web based music player for SkyDrive for easy playing anywhere you are.
"Nokia, which was originally set to launch a Windows RT tablet with cooperation from Compal Electronics, has also recently postponed the plans because of Surface RT."