Lovely gesture, well done to him.
It is an obscene amount of money to be earning on a weekly basis so it would be nice if other similarly-salaried footballers followed suit, even if just for a couple of months at a time, or even one month, with it going to a charity or cause of their choice. It could make such a difference.
Although I'm sure a lot of them do donate anyway... but it's a great gesture by Beckham that might get that particular ball rolling...