I've been using CS4 since it came out, and for the most part I like the new way of handling adjustment layers, especially the button that lets an adjustment layer work on only the layer below. I know this has always been possible to do, but it is much faster now.
On the other hand, there are times when I would like to be able to "Alt-Reset" while in an curves adjustment layer, rather than having to delete the layer or drag the points off the curve. Is there a way to do this?
See that little circular arrow icon at the bottom of your adjustemt layer dialog? Yep, that's the new reset button! (Agreed, it is a PITA when you are used to using alt/opt keys, but now after almost a year, I'm getting the hang of it )