http://blogs.msdn.com/ptorr/archive/2006/05/04/590099.aspxNow you can start building and testing HD DVD interactive content on your home computer! After some delay, the beta release of the iHD simulator and related tools is available from http://www.microsoft.com/downloads/details.aspx?FamilyID=994accae-1591-4cc0-9d5b-03b0494686a4&displaylang=enen-USCommunityServer 2.1 SP1 (Build: 61025.2)