Very nice little update. I'm glad to remove Time Machine from my dock, thanks to the new icon in the menu bar. Stacks open more smoothly in Grid Mode, it seems. And no more translucent menu bar! Woo-hoo!
The usefulness of the new Stacks option to use the original Folder icon (instead of the auto-icon) is mitigated by the Leopard's inscrutably lousy folder icons. I'll stay with the auto-icon, thanks to the
stacks overlay trick.
I hoped beyond hope that 10.5.2 would finally provide Time Capsule features to the Airport Extreme. No such luck.
A good update, altogether.