Who did Osama have on sleeve dial?

I think this is the most interesting development in the Bin Laden story:

Osama bin Laden had cash totaling 500 Euros and two telephone numbers sewn into his clothing when he was killed - sure signs that he was prepared to flee his compound at a moment’s notice -top U.S. intelligence officials told members of Congress at a classified briefing in the Capitol Tuesday.

It seems to me that these phone numbers are going to be a big story. Were they Osama's contacts in the Pakistani ISI, who were supposed to tip him off to an American operation? Or Ayman Zawahiri's satellite phone? Domino's Pizza?