Enterprise desktops are different from “personal computers”. They are, for the most part, special purpose machines, intended as tools to help the employee get their job done. They need not concern themselves with the ability to watch movies or play games, they don’t need to worry about supporting the most recent 3D desktop enhancements, or the latest apps. They only need to work, and work reliably. The “work” portion of the previous sentence is no problem. Linux works great. Unfortunately, it is the “reliably” portion that still needs some work.