Royal correspondent Jennie Bond: Prince William will feel he's let Kate Middleton down
The couple, both 30, have been shaken by the debacle.
'Just when it was going so well, these pictures will be like a dagger through the heart for Prince William,' says BBC royal correspondent Jennie Bond.
'Although he's never been able to forgive the way his mother was hounded by paparazzi, he's accepted that he has to work with the press.
'Now he will feel utterly betrayed, all the more so because it's Kate who's been hurt - the woman he adores and vowed to protect.
'The Palace has come out with all guns blazing, calling the photos ''grotesque, unjustifiable and unthinkable" - a sure sign that William is beyond furious.
'He will feel he's let Kate down - and she'll no doubt feel she has let the Royal Family down.
'More than anything, it brings back some unwelcome memories for William of how his mother lived - and died: pursued everywhere by prying eyes.
'He will not forgive or forget this latest intrusion.'
Read more about Kate Middleton and Prince William in Now magazine dated 24 September 2012 - out now!