To Ellipses or not?

I just noticed an interesting discussion on the eclipse ui-best-practices-working-group list about a recent change in Eclipse to rename Preferences... to Preferences and the bug asking to rename it back.

I admit that in general, I'm usually one to follow Microsoft's lead for UI standards however I think in this case, and probably going forward, I'd be more inclined to follow the Apple or Windows XP style guide instead of the Vista guidelines. I've only briefly tried Vista before dropping the VM and switching back to XP and didn't really see anything impressive from the UI in it.

I too am in favor of using ellipses in menu items when a dialog is invoked vs. a command being executed.