From Rorate Caeli courtesty of I.Media:
Vatican - Agency I.MEDIA - July 4 2007
The Motu Proprio "Summorum Pontificum" for the liberalization of the Mass according to the Missal of 1962 will be published on July 7
The Apostolic Letter in the form of Motu Proprio which Benedict readies to publish in order to liberalize the use of the Mass and liturgical books according to the pre-Conciliar rite of 1962 will receive the name of "Summorum Pontificum", I.MEDIA has learned from Vatican sources. This document, greatly expected by the Traditionalist faithful and feared by a certain number of Bishops, will be published on July 7.
Summorum Pontificum (in [English], "...of the Supreme Pontiffs") is the incipit (beginning of the text) of the Motu Proprio of Benedict XVI liberalizing the use of the Mass said of "Saint Pius V", I.MEDIA has learned from Vatican sources. This Apostolic Letter which will be made public next July 7. The document will be accompanied by a long letter by the Pope explaining his motivations for this publication of which certain Bishops, particularly in France, disapprove [lit. "take a dim view"].