The (unconfirmed) info says that Mac OS X 10.4 will go “further than anticipated”, introducing not only a “database-driven” new Finder (possibly similar to BeOS’ Tracker) –although the file system itself will still be HFS+– but also a wide support for file metadata. Please note that both the BeFS (and quite possibly this Apple implementation) is not similar to Longhorn’s WinFS (apples & oranges). All this is not a surprise for us, as the people who were behind the same realization on BeOS –Dominic Giampaolo and Pavel Cisler– today work at key positions at Apple Computer in the file system and Finder areas respectively. Pavel is also known for the Gnome Nautilus work while Dominic’s legendary book “Practical File System Design with the Be File System” was recently released for free as a PDF. Enjoy!