My Rome guy:

Communion just ended – sadly, they ran out of hosts. But no one really seems to mind. They will make a spiritual communion instead.
It is hard to believe that a crowd nearly this large is gathered a just across the river, at the Circus Maximus. Tens of thousands who were at a vigil service at St. John Lateran Church processed across town last night and camped out there. There are reports that there might be hundreds of thousands of people over there, too! No reports on crowd numbers at the other parks opened up for the 4 million people who came to Rome for this.
People are now clapping in unison and cheering for their papa!
It is amazing – Ratzinger looked a little chocked up.