The bloke behind Microsoft has hit out at Apple messiah Steve Jobs calling him monomaniacal. Chatting with the Guardian, Allen praised Jobs for turning around Apple, but said he was too obsessed with single ideas.

Allen also waded into Google for claiming that it was doing no evil. He said that Google's Sergey Brin and Larry Page, had "elbows and claws" in their pursuit for growth.

Allen said he laughed when he saw people pushing the boundaries all the time of what they can do to monetize things, capture things – and then say, we're not evil, as if their default is not to push the boundaries. If their default is to push the boundaries, they should be just going for it. If they get pushed back, then they should not say they are not evil, he said.

In other words you can't do good, without doing a little bit of evil on the side.