I had problems with using the Upgrade install, fireworks kept freezing, also printing didn't work. I had to reinstall using the Archive option and everything is better now.

I hope to create some of my own desktop widgets.

Spotlight is slower than Quicksilver though more functional. I liked Quicksilver for very quick application launching. With Spotlight I have to search, wait a few seconds, arrow down two times and press enter. With QS I can start typing for example "Word" then hit enter and it will launch MS Word.

I think my battery life has improved. I can tell for sure that my boot times are about 1/2 of what they use to be.

RSS in Safari is really great. As is the RSS screensaver, though I don't usually use a screensaver on my powerbook.

Safari is also much faster.

I like the new mail interface.

I like automator, but don't know what I would use it for yet.