I've got an idea for disk usage analyzer

i dont know this is a right place to say this or not;
actually this is not a question this is an idea.
what if you put actualy files in the treemap chart. as we click the folder we get to see what files are in or we can just right click the folder to open it from the treemap chart.
is it because the windows browsers sucks i dont like those folder view (that you dont get to know whats in it until you open it.)
i'll wait for reply.