Hi all, I am new in programming under Max OS X. I have application which i need to build for mac os x, intel64 (from Snow Leopard 10.6 to Mavericks 10.9). So, first question is: Under what version should I develop for best compatibility between all intel64 based versions of Mac OS X? Second problem is that i do not have real mac, I am using iAtkos through VirtualBox, currently ML2 (Mountain Lion). Second question is: can I use Virtualised environment for to build packages functional under real mac? Thank you for any help.