If you read the article following the vote, the poll has been closed for some time. They're continuing to take votes, not so much for the results but to monitor the mobilization factor of the Palin and anti-Palin groups. They're also counting the attempts at multiple voting, which I presume at some point they may publish stats. If I had to guess those will probably come out even. I'd also guess by now the "new" verses multiple votes factor will be very low.