Not sure how this one slipped past the radar, but Apple’s skimpy open source development site MacOSForge has been updated with new pages for ZFS and XQuartz, the project behind the X.org-based X11.app.  I’d always felt that X11.app was the bastard stepchild of Apple, included in OS X out of an obligation to appease Unix users and not because they want it to be any good, so this is great to see. You can also download fairly recent tarballs of the full read/write code for ZFS at your own risk.