I've been looking over some of the earlier tech demos from WWDC 07 where Steve introduced upcoming features from Leopard and was hoping someone more knowledgeable than myself could shed some light on certain issues. Namely, what happened to the tech demo apps that showed off Core Animation's possibilities? and, why did we never see apps this impressive come to fruition? This first video is of Steve's introduction to Core Animation and shows a hugely impressive app in which all your mac's videos are collated in a 3D wall similar to Apple TVs. What's really impressive though (i'm sure you'll agree) is the search feature in which tagged vids, fly out on request and collate in a coverflow-style interface. http://www.youtube.com/watch?v=pyd8O-2mkgk The second video I imagine most of us are familiar with, and was another tech demo showing off screensaver type animation possibilities in which large 3D structures are assembled from your iPhoto Library. http://www.youtube.com/watch?v=srDkugKfGY0&NR=1 Now i've managed to find a 3D screensaver similar to the above by a guy called David McNerney which is a great little app and begins to show some similar animation techniques (i imagine it's largely based on these earlier tech demos). see for yourself at: http://davidmcnerney.com/MovingPhotos3D/ So. What happened to these tech demos? Was Leopard not actually capable of delivering on these promises? We're the rigs used custom-built behemoths and would regular macs be incapable of living up to live animation on this scale? why are apps like David McNerney's above, which although pretty damn cool, nowhere near as impressive as these preliminary demos? Has Apple ever issued any statements answering any of these queries?