I’ve been generally happy with tiger on my powerbook. The Spotlight search really has helped me finding my stuff. But I’ve had problems with slowdowns after working with my computer for a couple of days. I never turn of my computer, just putting it to sleep when I’m done working, and after a couple of days the machine would get slower and slower. I finally gave up and started to search for the problem. Turned out that Dashboard (when loaded) ate memory like a hog! My guess is that their is a memory leak when using some of the widgets. But for me, Dashboard is to slow to be of practical use for me, so I opted to disable it. And now the machine works great again.
If your interested in disable Dashboard, do the following:
Open Terminal (you’ll find it under Applications/Utilities)
Type defaults write com.apple.dashboard mcx-disabled -boolean YES
To enable it again, write defaults write com.apple.dashboard mcx-disabled -boolean NO