One of the great things about Lion was the Virtual Display, whereby when screen sharing you could login as a 2nd user rather than just take over the physical display.
In effect it was like turning your Mac into a (limited) multi user system, whereby 2 people could simultaneously login and use it.
When using the Screen Sharing feature in Mountain Lion (to research whether there were any changes that might answer this question), I noticed it has seemingly been removed.
Is there any official documentation showing it's removal, or is it still possible to achieve perhaps through other utilities, like Apple Remote Desktop?
I should add that I am using ML at both ends of the screen sharing.