You see, this is what ticks me off about OS X. Where's the flipping adduser script? I found one on-line which supposedly will work:
...but it should be where it should be, which is where the unix gods put it, which is in sbin.
Its great to add all this GUI stuff on top which is user friendly, but someone please tell Apple to stop mucking w/ the underlying standard stuff. Every other *nix which is worth a squat has this capability.
How hard is it really to understand there will be those who want to ssh to a remote OS X machine and don't like or refuse to buy ARD (which looks like a Windows-ish solution)? Apple did not leave us the possibility to do everything with ready made scripts and its not possible to remote display Aqua apps. Looks like they are trying to make it hard to work without ARD.
I see these as Marketing beats Engineering decisions. Maybe it does not seem like much, but its a turn-off to those who could be among the strongest supporters/advocates.