Facebook’s developer blog posted that they will be making a clean up app for your profile in addition to the show more apps buttons.
From the Blog post:
To benefit all users, therefore, we will soon be launching a “profile clean-up” tool. Similar to how your computer’s desktop will remind you to get rid of unused icons, this tool will give users the option to move extra profile boxes to an “extended portion” of their profile. Users can choose to move these boxes; we will recommend that they keep the Friends Box, Mini-Feed, Wall, Basic and Personal Information as well as the top 12 application boxes they have added. At the bottom of the profile will then be a link to “Show Extended Profile”. Any user will be able to expand the profile at any point in time to see all the applications a user has added to their profile.