NFL ruled on Plaxico today as well. He cant sign with any teams until he's out, but when he's released, he's free and clear to return to the NFL.
"Plaxico Burress is not under contract to an NFL team. In light of his plea today, Commissioner Roger Goodell has suspended Burress and informed him that he is ineligible to sign with any team until he completes his jail term.
"Commissioner Goodell said Burress will be reinstated and eligible to sign with an NFL team upon the completion of his sentence."