Updated: My bad. Amapi is till kicking (and NOT to be confused with this :))
I was looking for a 3D appplication to play with some things, and noticed that (it appears) Amapi 3D is no longer on the market.
Amapi was a Mac 3D modeler (from back in the day), with a killer innovative "workbench" UI and a gestural interface. It was a enjoyable, useful product, but got squeezed quite a bit (along with a lot of other rich authoring tools) as people moved from productive to consumptive behaviours with the explosion of the Internet (not to mention the time-coincident shift from Mac to Windows - a move from which many Mac products never recovered).
Amapi survived though, moving through various acquisitions and continuing to improve and innovate through the years- its a little sad to no longer be able to find it.
But as good as the product was (and I loved it), the best part was the name. It was (originally) developed and marketed by a French company called Yonowat.
(or, in English: You know what? I'm happy)...
It's the little things, you know :)