No luck for me either. Samsung Galaxy S3 ICS 4.0.4, Mountain Lion 10.8.2, Mac Mini Mid 2011. Kies for osx not detects any phone, neither via USB or Kies over WiFi. I tried various things found here and there. Nothing seems to help. And never will help with crap software. I wouldn't think that with a such a great phone there will be missing the most important part, the syncing software ... I do tried Kies Air but that's NOT the same thing as having a full fledged sync app on your desktop. I do like the idea of browser interface of Kies Air for jingling your phone but mostly for occasional browsing ... Cmmon Samsung you can do better than that ?