There are so many ways to define primary... but my home desktop, my work desktop, my work servers, my ebook reader and my smartphone (N9), depending on the day

There are so many ways to define primary... but my home desktop, my work desktop, my work servers, my ebook reader and my smartphone (N9), depending on the day i pass a lot of time with some of them, and all runs more or less pure linux. What is not primary is my tablet, that runs Android.