...and a quick related suggestion -- could we possibly get an option to "view collision polygons" when working with a layout in the editor, which would overlay each object with a transparent outline of it's collision polygon?
This might help to debug problems where the collision polygon isn't exactly where you think it is -- it would certainly have made my current situation a lot easier to figure out at a glance, as I needed to line up the collision polygons of a number of objects, and it wasn't immediately obvious based on the image of the objects exactly where that was.