I have said this in the thread to which Dan has posted the link to too. Most people I know are switching to Linux from Windows 7. The reasons are quite varied. Some like the sheer flexibility of using linux & some do not want to deal with windows and malware and virus.
So, based on my experience (and others too from what I see in the forum), if at all, it looks like linux desktop users are on the rise and I just find it ridiculous listening to all these claims of dying linux desktop.