Disagree masta, CS4 Extended is the shiznit. I'm far happier with it than I ever was with CS3. And this comes from someone who literally uses Photoshop on a daily basis.
Anyway, this 'Content Aware' stuff is fucking sick, I can't wait for CS5.
The new interface design threw me off at first, but after a couple weeks of heavy usage I found it to be far more intuitive. It also runs a lot faster on my old XP machine (and ridiculously fast on my new x64 Win7 laptop - boot up time for CS4 extended on my laptop is less than 3 seconds)