With the ability to burn hd dvd's to standard dvd's using Pinnacle's Studio 10.7 software it's only a matter of time before we get a version of clone dvd that can do the same!
i think that is something that will appear but not for quite long time as most pc's on the market still only have a dvd drive. clonedvd3 will be out (sometime before 2008 me thinks) but it wont have hd capabilities i dont think.