In short: web server improvements in VP Pro (searching! iPhone-ified!), AppleScript fixes and improvements, edit in the search results window, double click to edit inline images in another app (such as say.. Acorn oh look- a movie: VoodooPadImageEdit.mov), other little things and bug fixes of course. And it's still compatible with OS X 10.4 as well.
It's a beta- so don't forget to backup your
brain documents first. Which of course, Time Machine will do for you anyway if you are running 10.5 and have it turned on.
I love Time Machine.