Networks fine. Just tested it on dgcdice.com 
I'm not sure you know how a 51% attack works. The network doesn't just die. In fact, it is highly unlikely that anyone will even notice a 51% attack has occurred until the attacker decides to sell millions of non-existent coins on an exchange.
This was clearly demonstrated with Powercoin.
My answer was in response to network issues. He said coins were going ? and not coming through.