Apple is seeding another developer build of Mac OS X 10.6.4, 10F566. Arriving a just a week after the last build, 10F564, the new one has grown only modestly in size to reach 613.8MB. Bugfixes continue to be concentrated in several key areas, namely iPhoto, Aperture and DVD Player, as well as input responsiveness, SMB file servers, VPN connections and Creative Suite 3 apps.