One thing I LOVE about OS X: You download an App and drag it to the App folder or wherever and your done. Most apps are like this, it's almost as if they are self-contained. Why? Meanwhile Windows requires an installer, and Linux is a mess (you have to add PPA's a lot of the times). Linux also uses an installer and an App store. I however have no idea where apps are stored or how to modify them on Linux, namely Ubuntu. So what is it, what is the magic behind OS X? and could it be possible for Linux to adopt such an easy system?