If "deleted" programmes are not actually deleted they will take up room on the hard drive. Will there be a function to delete them from the "bin", as with computers?
You do know that that's exactly how computer hard drives work? Files are never actually ERASED when you delete them, but the portion of the disc where the file is located is marked as being "reusable" and thus is able to be written over when new files are created. I don't see how this is any different.