I don't know if I'd go that far. Unix has been around for almost 35 years now. It's had had more ups and downs than a yo yo. I've been doing Unix for almost 20 years and I can tell you, the "future" may still be a long way off.
Don't know about that. Apple did ok taking FreeBSD and attaching their GUI to it. _nix may well be the future, but the REAL question is who will get it done. Right now the Open Source People are pretty innovative, but they don't speak a language that most computer users (this one included!) can understand.
They need to simplify instructions to such things as "type in THIS command (insert terminal command), click on THIS icon, etc. Going through Linux documentation can be a real nightmare to the average user.
_nix will not be ready for the average guy until the people who are writing it realise that the average guy DOESN'T CARE how something works, they just want to know in simple steps how to do it.
As i said above, Apple OSX is just about there.
BTW, this comes from a Linux user on a PC, and not a Mac owner.