Archbishop Martin of Dublin has floated the question. Fr Vincent Twomey, an Irish theologian and former student of Pope Benedict is a bit more blunt:
(Bishops named in the report) should resign immediately from their current pastoral positions. (T)he longer they delay in doing so, the greater the damage they will do to all faithful Catholics, and in particular to the survivors of abuse who are still paying the price for the sins of their priests and bishops.
I believe the number of former Dublin auxiliaries named in the report is five. I wonder if any nation has ever seen such a quantity of bishops resign at one time. It would certainly send a message that some sense of sin has been recovered by the hierarchy. How would the Congregation of Bishops handle the vacancies? Remember Cardinal Law “and Order” had to submit two resignations, and after the second, he was given a job at Santa Maria Maggiore.
Priests know that, for them, there is zero-tolerance for a few transgressions. As for the mismanagement of sex predators, should that also be a zero-tolerance issue for bishops?
Catholic Sensibility 
Resign. And publicly, not waiting for Rome’s acceptance.
And don’t fill the vacancies. The practice of auxiliary bishops in non-mission territories is questionable at best, an exercise in plausible deniability too often. If a diocese is too big for one ordinary, it should be divided; administrative functions that are more efficiently dealt with on a larger level should be dealt with at a provincial or national level as appropriate.
Hell, yes!
Meanwhile, as Americans go back to ignoring developments:
http://www.irishtimes.com/newspaper/breaking/2009/1206/breaking29.html?via=mr