Right now we don't support multiple sessions a la Gmail, except the demo/demo user, which is read-only, hence this is not an issue. If you open a new session w

Right now we don't support multiple sessions a la Gmail, except the demo/demo user, which is read-only, hence this is not an issue. If you open a new session with the same user (eg. in another browser) the previous one will be logged out. If people use the guest/guest they will keep kicking each other out.