As of the Dec 31, 2010 Balance Sheet the Debtors were still anticipating a refund from the 2008 NOL.
The following excerpt from the Balance Sheet seems to indicate that even after using the $ 48 B in 2008 NOL there will still be $ 2 B owing in taxes - which I find astonishing and quite frankly hard to accept.
"As of December 31, 2010, the Company has recorded in its Balance Sheets an estimate of
approximately $2 billion for potential amounts owed to federal, state, and local taxing authorities, net
of the refund claims and the anticipated five-year federal NOL carryback."
There is still the $ 5 B in NOL for 2009 and probably billions more for 2010 that has not been used.