As I mentioned in a Office 2007, I think the Ribbon is the best thing since sliced bread*, so I for one am excited by this. However it still looks like the bastard step-child of the Windows version.
What's with the toolbar still being there?
Also, on a 13" screen, nothing pisses me off more than the stupid palette thing in Office 2008.
*Not interested in arguing about this today. Refer to previous threads