Gnome3 will be Unity, it's the evolution of Gnome.
As for thoughts about it? It's basically designed for netbooks/touchscreens IMO. I'm pretty sure Windows and OSX is going to follow this design soon too, or at least make it part of the to be released operating systems.
transhour: How is this a Mac clone? Mac is more like having Gnome2 + dock, it's not really going in this direction yet. And yes, I know this because I run 10.6.6 =P and I actually think the linux dock systems are better. LOL They have more features and are easier to customize.
@mushroomboy: dunno, it just looks and feels mac'ish to me. i've thought this since 10.04 when they switched which side the buttons were on
i know there is more to mac-ness than which side the windows button are on, but it is a start
and the dock's drive me nuts, drove me crazy in mac osx due to lack of features and customization, in windows it was tough to find a decent one, in linux, there are dozens, each doing a different thing, with tons of customization and features that aren't in the windows or mac one, but it wasn't unified enough for me to see any benefit to it.