[1] repair disks
[2] repair permissions
[3] cleanup cache files
[4] validate preference files
[5] clean up virtual memory
Not a very big list of tools? nothing I can't do with fsck and plutil.
My, quite the critic... aren't we?
[3] would require more than fsck and plutil ...including knowledge of where all caches are located. (e.g., don't forget the /var/folders/* hierarchy).
And we are currently discussing the complexities involved with doing [2].
There is an optional RAM test module (installed separately).
But those functions are a fairly basic set which users who aren't Unix gurus can use to do stuff by simply selecting a number. [and of course: the point of doing those in SU mode is that the user is presumably unable to login to the GUI for some reason.]
Perhaps you'd care to author the Lion version of AppleJack though.
[or suggest some feature(s) for the author to add at least.]
