We've been hearing a lot about Qt running on Symbian OS and how it's going to help, but this video (from the recent Qt Developer Day) shows how the current S60 UI would act if it was powered by Qt. It's still recognisable as the interface that many have a love/hate relationship, but it gives a nice touchstone to jump off from to the next iteration of UI.

Thanks to Zomg it's CJ for pointing out the video.