Of the current high definition DVDs, approx 75% are slated for Blu ray and only 25% HD DVD. Disney is all Blu Ray, now Universal and Lion's Gate. Soon to be Paramount as well. At CES, Microsoft said they would scale back HD DVD add-on players and soon offer a Blu ray add-on player for the XBox 360.

I'd say 2008 is the year HD DVD finally goes away.