Here’s an interesting 3D Flash site called TiltViewer, an engaging 3D browser that pulls images off Flickr’s Interestingness list. Built using Away3D engine, a branch of Papervision, the performance is much better at handling mouse events for nested 3D Objects. While the 3D user interface doesn’t really add anything beside a coolness factor to the regular 2D equivilant, it’s a great first attempt to explore ways to make multi-dimensional interfaces simple and intuitive. I’m looking forward to see how this UI will continue to evolve.