NokiaBetaLabs

Did you try pressing the display in a blank point in the preview screen?
Anyway this app stopped to receive updates long before Symbian^3 appears, so I would not be surprised if it doesn't work as it should.
It's a pity, I hope they will start to work on it soon, after all also the new Symbian^3 cover flow is something of the same kind, so it won't be too long to develop!