a mode where you can keep the dock always on top, but it automatically switches into autohide when there's a maximized application.
Might come in handy, if the dual monitor quirk is fixed. Currently if I have a dock on the right side of monitor#1, and set it to autohide, it doesn't hide, it just slides over to the left side of monitor#2. And it's difficult to get it back to monitor#1, short of turning off autohide.
Same thing with a dock on left side of monitor#2.... it just slides over to the right side of monitor#1.
Personally, I like thomassen's idea better.