I agree that XP has catching up to do.
With OSX maybe... with Workbench... don't make me laugh.
Workbench is an improvement but as it standard is gray and dull. No 'shock visual change' like XP or OSX.
future releases or custom designed skins may help, however.
But to be honest, some aspects of the layout and the inclusion of additional gadgets needs to be addressed first..
Or just more user-intuitive usage of the ones they have..