I'm curious to know what other people are looking for in future OS updates.
I really miss right click->arrange by name. I'm suprised no one has come out with a little app that adds it. (to my knowledge). I'd like to see all the features of quicksilver integrated - it's the best program and I'm so impressed with it.
A document shelf, multiple clipboards, virtual desktops (implemented with expose of course!).
I'd really like to see a screenshot thing where you could do something similar to apple-shift 4, but instead of creating a file it would show the shot as a transparent window that you could drag to other parts of the screen. You could take a screenshot of a piece of code, or an image, then move it to the corner of the screen while you work on a related piece of code.
I'd like to see the terminal integrated into the finder (right click,- new terminal), folder paths shown instead of just the name, and drawer preferences (left or right by default).