I came across an interesting series of posts today (via Linux Hater's Blog): Desktop Linux Suckage on Elliot Hughes's blog.
I'm about halfway through the series now. It is fun to read and not as offensive as the usual Linux hater posts (which I don't mind but others do).
I am still a Windows user and will continue to be so but some of the things he points out are not solely applicable to Linux and software on that platform.