Linux has made leaps and bounds when it comes to end user interface over the last 5 years. There are tens ( hundreds? ) of thousands of developers dedicating free time to writing fantastic software for Linux, and there is no doubt in my mind that the popularity of the Linux desktop is rapidly increasing. But what is the state of Linux for the average modern developer? Are the tools decent and easy to use? Can the average UI developer just pick up something and write an app that anyone can use? In short, my experiences would have me say no, and this is why.