Ongoing Mac OS X 10.5 Leopard Notes

I've been running Mac OS X 10.5 ("Leopard") for a week or so now, and have been collecting notes.

Overall it has been a painless upgrade. Leopard has some very nice new stuff, and seems solid and reliable. There are a few UI quirks and questionable choices, but they are few and are outweighed by a larger number of improvements. Not to mention the stuff under the hood that is now available to developers, which will come to light as applications are updated to take advantage of it.

Here are my notes, which I'll update as I find new things.