* Tizen supports HTML 5, native, and hybrid
* There is a group of folks porting Qt to Tizen. They also have Thiago (Intel) and the 2 folks heading the initiative (from Samsung) -- of course all unofficially. I did get to chat with Thiago about his thoughts on Qt on Tizen Mobile and he said it would be great but the file sizes of the apps will be the problem
Tizen mobile doesn't. I wouldn't be surprised if Samsung just focuses on mobile, and Intel on IVI (think chips) Someone tweeted this pic which clearly shows the relationships of the OSes: