Hi, The netatalk package version in OpenBSD is quite old: 2.0.3
The last one is 2.2.1 and adds the support for Time Machine backups and Mac OS X Lion. A diff was posted few months ago by Björn Ketelaars ( http://marc.info/?l=openbsd-ports&m=131706596102262 ) but it seems there was no follow up. Is there any plan to integrate it in OpenBSD ? Is it lacking on some aspects ? Can I help ?