If you haven’t upgraded to the latest version of Mac OS X, go out and get it. I was a little concerned because each version of an OS typically requires more resources and I expected things to get a little slower. To my surprise, things are quite a bit snappier. Fewer spinning beach balls with multiple applications open. Faster browsing. I did do an “Erase and Install” to clear out the cobwebs that had built up over the last 2.5 years, so that may have been some help. But I also did a simple upgrade to an iMac and my wife’s first comment to me was, “Did you install something? Because everything is a lot faster.”

From what I understand a lot of the changes are in the subsystems that will help developers build applications. I can’t wait to see what people come up with, but the speed improvements and Spaces alone have made this a worthwhile upgrade.