There aren't a lot of commercial games for the Mac at the moment. Apple has done a poor job in supporting game development and an even poorer job and gaining the market share in that demographic. This could play into the hands of independent game developers.
Most of the existing market is looking for entertainment of some sort on this platform. This, I believe, has created a demand for casual games for the Mac as the user base looks for anything to keep them entertained. If the commercial market can't see a potential for this demographic, perhaps we, as independent game developers, can feed the demand.
Why do I bring this up? The library we have chosen for our first game is win32 only. The more successful independent games I see, the more I notice they are offered in two flavors, win32 and Mac OS. This could cause me to reassess our approach.
I will be doing research on this topic and posting the results here as I work. Maybe we can all benefit from it. If you have any thoughts on this, feel free to drop me a line.
CEO/Producer, Cabal Games LLC