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i have a hackbook (Dell laptop, Snow Leopard, Win 7), never synced my S2 with the Mac side, but in fairness, do all my syncing wirelessly with WiFi transfer pro (android app), which can be done seamlessly via Mac or PC. as for KIES, only thing its good for is the drivers to run it on a PC.
i sync my itunes stuff via "isync", an android app which works off PC, i know this doesn't help your sitch, but maybe there is a Mac alternative.
. so got it installed already. Sounds great 
. What an awesome device, that's for sure. Love the build-quality and haven't had any issues with andriod yet, everything super-smooth and easy to use!
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