Nokias tablet keyboard

I would love to own a Nokia tablet. And was very excited when the rumors came around they were developing one. But I do not want a full keyboard dock as the add on keyboard. I want a thin light cover the like touch cover. Or this cover from Sony. I want a tablet to be light, besides in the report it says the stand alone tablet gets 10 hours of battery life. I don't need more than that. Even if its only 8 hours that's fine. I'm hopeing they are also developing a thin keyboard cover as well.