Suspending login shell

[jpayne%bbn-vax at sri-unix.UUCP]

From:  Jonathan Payne <jpayne at bbn-vax>

Recently I was wondering why you can't detach yourself from the system,
and then attach from somewhere else, like on tops-20.  Then I remembered
what csh says when you try to suspend your login shell:
	Can't suspend a login shell (yet).

Does that mean somebody is planning to implement the equivilent of detach
and attach?  And would it be difficult?