We all know that Nokia was once of the best phone manufacturers in the world, they still are in my opinion, but the problem they had was that they didn't see Android or iOS coming. They reacted way too late and are now second to Samsung in phone shipments worldwide.
A concept from Nokia seems to have leaked on to the web, called "Air". There is no confirmation on when the concept was made but I'm thinking it was quite recent. The idea is that your phones and tablets run completely off the cloud, with all devices being synced together.
I have high suspicions though that Nokia has made a copy/ripped off a designer which made a very similar concept last year, you can check that out here - Amazing Windows Phone 7 & MeeGo Concept | UI Design