Hey! First of all: I went through the different categories, but found this to be the most relevant one; thus, I am sorry if this thread should have been posted elsewhere. To the topic: I am doing my last year on a master in Interaction Design and have to deliver a suggestion for my master's thesis very soon. I want to write about OS X and relate it to design/interaction design, and wonder if you guys have any suggestions for interesting research questions? I am also willing to compare the different operating systems, i.e. including Windows and Linux too, so all suggestions would be really appreciated. Feel also free to include iOS, as I am very interested in their mobile operating system too. Thanks in advance.