Linux is obviously a trickier one to tackle. There isn’t one Linux—a RedHat user is assumed to be someone completely different from an Ubuntu user. The other problem is that many of the creative-dependent things missing from Linux are frequently missing due to licensing, take TrueType kerning for example. Apple and Microsoft license many technologies that simply can’t exist in Linux without a complete change of direction from strictly open source technologies. That’s not going to happen, and it shouldn’t.
An exhaustively thorough examination on the challenge of using Linux for “creative” pursuits, with creative defined as “photographers, video editors, compositors, Web designers, architects, graphic designers, art directors, 3D animators, audio engineers, etc.”