I am sorry Cameron has resigned.
As Trent has said, it was inevitable.
But why are you sorry that a man who put his party before his country is on his way out? He did so after the Scottish referendum and his intention, in calling the EU referendum was to give him more control over his own party. He has had a big kick in the bollocks now, and it is going to hurt him for a long, long time.
First consequence of result of referendum: increase in price of petrol at the pumps? Typical Brexit oaf: "I didn't think this would happen!"