In some cases we've been building tools that are specific to Linux for the desktop, and they only work on Linux, but I see two major projects that are wildly, wildly successful: Mozilla and OpenOffice, and those two programs are cross platform.
“It was a very hard life. As I got older, the family was depending very much on me. My two older brothers got married, so they had their own families depending on them. I had seven people relying on me, so I worked in a grocery store.”
“Only then, approaching my fortieth birthday, I made philosophy my life's work.”