interesting -- but i am not sure one would want to build an entire presentation with a lot of 3D effects and animations

IMO this would be a good tool to have among many -- to use judiciously only when needed. -- Maybe if we could somehow integrate this capability into existing tools (not sure how).

(I think MS Powerpoint has some 3D objects and animations -- but I dont see it used much in business. I used it once for a fancy presentation and it worked fine. It does support "Morph" transition so you can copy a slide 1it ha 3D object and move / scale / rotate it in 3D ... and powerpoint will interpolate it for you. you can also animate the objects - like apply a 3D rotation.)