Does Ogre have collision commands?
Dont think so.
Its very diappointing news - it might be worth stopping any further coding on an official 3D module, concentrate on BM and let other people do a 3D system.
Mini3D may be worth looking into if there is a Mac OS demo - although as the Mac version of Irrlicht is a couple of iterations behind (and looks like it may never be updated), it may have been worth trying a different engine...
But on the positive side, there's only been two years before nothing arrived - so far, Truevision 6.5 is on three years...