Marxian reported earlier in the thread that dynamic updating of .desktop files requires root access... Correct me if I'm wrong but I believe this feature is not coming and you will have to manage this manually by putting NotShowIn=X-MeeGo; in the .desktop files you want to hide from the main app screen ... which is why the latest version displays icons in the add-icon view even when those icons have that line in their .desktop files... which is why in that view you see lots of extra 'apps' that you might not have realised were 'installed'.