You piqued my interest, so I took a few minutes this morning to look up a couple things.
I found the website for the monastery. They mention Ossuaries (and have a few pictures), but don't assert that any belongs to any particular person. I would think that if they seriously entertained that the bones MIGHT be St. Peter's, they would say something on the website.
More importantly, I found a couple of very recent writings (June 2007) from the University of the Holy Land. They seem to think that the inscription on the Ossuary is not "Simon Bar Jona" but rather "Simon Bar Zilla" (or Simon Barzillai). Their conclusion was such:
This new reading does, of course, exclude Simon Bar Jonah as a reading for this ossuary inscription, and returns the discussion of the potential location of Simon Peters bones back to their traditional place, Rome.
The writings (one paper, one blog posting) can be found here:
http://www.uhl.ac/Lost_Tomb/ShimonBarzillai/
http://www.uhl.ac/blog/?p=188
Ping to 155.
Recent findings on Domunus Flevit ossuaries.
Help me understand the fundamental argument being put forward here:
Is the author saying that if the inscription was written in Aramaic script, then it would be "Simon Bar zilla", but if the inscription was written in Hebrew/Jewish script, then it would be "Simon Bar Jona". Is that the crux of the author's argument????
This conclusion was also very accurate
This new reading does, of course, exclude Simon Bar Jonah as a reading for this ossuary inscription, and returns the discussion of the potential location of Simon Peters bones back to their traditional place, Rome.