After installing 6.0.4 i forgot to delete the bin/fslogger tool that watches the filesystem for changes. I delete it because it does not work. I just got bitten by that again while doing svn updates from the command line and not seeing any files updates in IDEA.
Not sure what my question is though, but it would be nice if this were fixed.
One thing to note: In 10.5 Apple will introduce a real API to monitor filesystem changes. Might help.