Time to end the farewell tour

Cameron is apparently making a speech today calling for an end to the Blair farewell tour. The unopposed election/appointment of Brown to the Labour leadership has left Blair's position untenable. In Cameron's own words:
“What is the point in Tony Blair holding meetings and discussing long-term policy - or even short-term problems - with Cabinet ministers who may not keep their jobs in a few weeks time? What is the point of Tony Blair attending international summits in June when everyone there will know that he is leaving office in just a few days time?"
He's right. This is a farce and Labour should call time on it now.