I must have been asleep for the last week because an update to WordPress was released and I did not see it until yesterday.
In looking at the release notes it seems that a lot of the changes had to do with performance.
I have installed it here at idano but really did not see any difference. I would attribute that to the fact that I have slimmed done this site already so it is already running pretty quick. I am sure the differences would be seen in high traffic sites.
Already though there have been some complaints with the release and a temporary plug-in to fix the issues so we should be seeing 2.04 real soon.