Please please please fix hiding applications, where they don't get sent to the end of the application switcher (CMD+TAB).
I repeat this every time a new 10.7.x release is pending. This is the only thing broke in Lion that drives me up the wall when it comes to workflow/productivity!
I wouldn't say that's broken. That's how I want and expect it to work. I can see how you'd prefer it the other way too, though.