How to remove App Ids from iPhone Provisioning Portal

While experimenting with iPhone app development, we have several AppIDs which should be deleted - except I can't find any way to delete them! What can I do with them?

If delete is not available, how about renaming, hiding or permanently disabling?

UPDATE:

Beginning April 2013 Apple allows deleting AppIDs. Whoaa!

Can T Delete app ID from a deleted app?

App IDs cannot be deleted once used in the store. Deleting an app doesn't free up it's app ID. You may have a problem, tho, considering you've already deleted that app.

Delete: No
Rename: No
Hide: No
Disable: No

If you create an App ID, be prepared to live with it for the rest of your life; App IDs are the herpes of iPhone provisioning.