If you have ever had to look at a .plist file on a Mac, you know what a pain this can be. You need to open the plist editor application, and then you have to click on a whole bunch of little triangles to open up each section before you can actually see what all is in the file. With Leopard, it turns out that you can see the complete contents of a plist file use Quick Look. This is a lot faster than you the plist editor. If you need to edit, yeah, you'll have to open it. But for viewing plist files, Quick Look is a much better option since you don't have to expand anything, you can see the entire file at a glance.