Now, the war isn't over yet, but if you read IGN's article, it seems it's about to be.
http://gear.ign.com/articles/852/852769p1.html
I knew it would probably be Blu-Ray after seeing everyone using the PS3 as Blu-Ray player at NAB 2007. Hasn't done much else yet, but the PS3 is definitely what did it.
Actually, it's funny, because I have some video footage from CES 2002 of some serious biz Toshiba guys gathering around an HD-DVD ("blue laser") prototype that long ago.
Edit: I just realized, this is the first format war Sony has won in... Awhile.