Well, 6 of my friends have now tried to join the multiplayer game example. No one has been able to connect..
So i guess multiplayer is not really working for public players..
One of my friends was finally able to connect with someone named clayto (maybe from scirra)
But we were never able to connect again or join anything after that..
what a shame - i was looking forward to adding multiplayer features to my game. Oh well another idea dead as usual by the limitations ..