Here is what appears to be the unreleased new version of Symbian, it is demoed via Remote Device Access (Thats why there's a mouse to simulate touch).
Everything has been revamped and it looks much much smoother (maybe cause its running on RDA)?
Noticeable new features include...
New bottom toolbar (with 4 icons, normally just 2), menu, phone, search and options.
New Music Player UI
New drop-down notification features
New keyboard UI
Camera UI (like Pureview version)
Check it out: