Why not?
Technically, it's not difficult and this has been discussed here.

As 3D view menu is not too long at this time, I could add the 2 following menu items there:
- Store viewpoint...
- Go to viewpoint

Store visitor viewpoint item would display a dialog to name the current viewpoint of the virtual visitor before storing it. This item would be disabled in aerial view mode.
Go to viewpoint submenu would display the list of the 10 last stored viewpoints. It would be disabled until at least one viewpoint is stored.

What do you think?