Just had a play with the new Gnome 3 gnome-shell.
On Ubuntu 10.04:
apt-get install gnome-shell
gnome-shell –replace
To revert back to the default Ubuntu Window Manager
metacity –replace
(You may have to also run)
gnome-panel &
Anyway check it out…
This is the applications pop-up menu. Looks a little like an iPhone's main menu
I can’t wait till they get it ready for prime time usage… I think the Linux community is so ready to move away from the Windows-alike-a-thon of the past few years.
Sadly but actually happily, my old computer probably won’t run it very well. Looks like I’m up for a new computer with better graphics 
It’s ever stupid idea, really. Just try to think: why Apple didn’t make Mac OSX looks and feels like iOS — the answer is this approach doesn’t suit large screens at all.