Just got a Mac and many questions to ask you guys. 1. Do files in OS X appear in Windows in the same Mac? 2. If yes, then will they double the storage consumption? 3. If I have a software which can be installed in both OS and I would like to use it in both, will I have to install it twice? 4. When I update my iTunes songs (get info) in OS X, is it updated automatically in Windows? I love Mac. It works much better compared to my old PC.