This is a nice, short, article on the Linux Journal website about the latest KDE SC release.
It's interesting to see that even now, 2 years down the line people are still bringing up the KDE 4.0 release. Perhaps it's me but I don't (either as a user or developer) feel that KDE 4.0 was labelled a "Complete" or "User ready" release. I feel that distros where far to quick to package it all up and release it to the users. Kubuntu took what I consider to be the correct path by offering both KDE 3.5 and 4.0 in their next available release. I have been reading some articles recently stating that they may do the same with GNOME 3.0. The approach they took allowed those users who wanted to try the new desktop to do so while vanilla users could carry on with 3.5 until they opted to upgrade.
I do agree that with the author in the article above that we really need to push the message to users that may have left KDE since the 4.0 release. KDE 4.4 is a GREAT release which many 3.5 users, I think, will find not only usable but a great step forward.