How do I remove my comment from the Android Market?

 Needed to remove a comment from the Android Market and figured out how: Initially it wouldn't let me edit my comment to include no text.  It just won't let you save it.  What you have to do go to the app on the Android Market and hit the menu button.  There, in the "More" option there's a "Clear my review" button.  Hit that and your comment and rating are removed.