I am sick of the dock on Mac OS X Leopard not being able to make folders open with a simple click, like sanity demands and like it used to be. It's just embarrassingly poor usability to change very useful and logical behavior and not even leave the old behavior as an option.
A bit of research found no solutions short of messing with code, which I don't like to do.
I found out that command-click opens the folder which contains the folder in the dock. I wonder who asked for that?
But I asked myself: how about if I placed a file from the folder in the dock and command-click that?
Voila! That actually opens the folder the item is in.
Update: I got irritated about this after a folder got so large that even in List view it does not fit on my monitor, so the "open in finder" command normally seen at the bottom is not visible until I have scrolled all the way down...
In the Fan view, the command is at the top, so I have to move the cursor all the way up...
In the Grid view it's close by the cursor, but it's so graphical that it not instant, even on a Mac Pro.