The rumors have been confirmed: as per cyclingnews, Bernhard Kohl is going to Silence Lotto.  The polka-dot jersey should really beef up the mountain firepower for Cadel, which was desperately lacking at this year's Tour.  Quote from CN: 

In a press statement, Kohl said, "the whole team is strongly focused on the Tour de France as the season's high point. As we saw this year, you need a strong team to really be able to win. That means you must have at least two or three riders who have the class to ride in the top ten. With Cadel Evans and me Silence-Lotto now has two strong riders, who can be at the top of the race. We will have to wait and see which of us will be stronger in the end."

Sounds like he has ambitions to be the leader as well if Cadel falters.  Will he play loyal domestique?  Next year's Tour is already shaping up to be very interesting.  I can't wait!