Good news for Linux on the desktop. This report from Computerworld of a usability study of users without prior experience with Linux or Windows indicates that the KDE desktop is almost as user friendly as XP:

Linux, once viewed as an operating system that only computer geeks could appreciate, is today a much more user-friendly software that companies, public administrations and consumers can master almost as easily as Microsoft Corp.'s Windows XP. That's the core finding of a study published Aug. 1 by Relevantive AG, a Berlin-based company that specializes in consulting businesses on the usability of software and Web services.