A while back (well sometime in 2011 I think) there was a reference to ATIK drivers being developed for OSX.
I've released the first public release of the ATIK OSX Driver frameworks today (attached).
This is an alpha release (v0.02) with support for the current cameras and so far tested on my own cameras: ATIK 383L+ mono, Titan mono, ye-olde and trusted 16IC mono and EFW2 filterwheel.
The full frame 4000/11000 will take images - however I cannot verify correct images (mine is without sensor).
The current framework is compiled for OSX 10.8 64bit however I will look at a 10.6 32bit when I can.
I'd like to thank Jonathan and Steve for their time and patience!
Lastly - I am not an ATIK employee (just under NDA for the source code) so please bring problems with this driver to me. If you have any issues - please provide me with the ATIKOSXDrivers.log and/or ATIKOSXLegacyDrivers.log which will help me fix your problem.
Kind regards,
Nick
NickK on the StargazersLounge forum, or NickK-UK on CloudyNights forum.