Symbian Belle which was introduced in August last year features new resizeable widgets, a pull down notification similar to the one available on Android and iOS 5, improved multi tasking, integration of Microsoft products, NFC built in and more.
Check out the official demonstration video which follows:
Nokia also announced some new handsets and that the Symbian Belle handset will find it's way to some of the older Nokia devices.
It's expected soon and said to be available via Nokia Software Update. Stay tuned and we will keep you updated on all things Belle as it happens.