Clegg's shift on MPs expenses

I am all in favour of people coming around to my way of thinking, but what has prompted this move from publicity-deprived LibDem Leader Nick Clegg we wonder?

After all, Mr Clegg has claimed the maximum allowance for a second home as recently as last year including the costs of doing it up. No doubt Mr Clegg will be happy to pass the profits to the taxpayers, but would he have been happy to have done that if the storm over expenses hadn't blown up? Discuss.