Mgr Marini, the Master of Pontifical Ceremonies has given an interview to L'Osservatore Romano in which he has said that it will be a habitual practice at papal Masses for Holy Communion to be given on the tongue to the faithful kneeling down.
Fr Z has translated part of an interview and added his own comments. (Msgr. Guido Marini: Communion kneeling and on the tongue will be the standard for papal Masses)
In the same post, Fr Z has included the podcast of the sermon he preached here at Blackfen on the Feast of the Exaltation of the Holy Cross at a High Mass on the occasion of the promulgation of the Motu Proprio Summorum Pontificum.