I just found this great review of the Ubuntu Feisty Fawn Beta over on Digg. This review is a great look at both how far Linux has come and how far it still needs to go.
The reviewer takes a what “just works” look at Ubuntu for him. And while he does some things that most normal users might not do, it still shows some stuff that needs work. Lets face it, Windows has a leap on Linux and as a result a lot of things “just work” in Windows.
Great review though.