I frankly love that XAML/C#/Cx , HTML/CSS/JS and Dx/C++/Cx are there for us to build first class apps...
BUT i find it very weird that MS are using HTML for the MAJORITY of the Bing/Live/Xbox apps (looking at 15+ MS made apps all of which are HTML and a very very small fraction is XAML/Dx) ... it's like theres an internal memo to build everything in HTML,
i seriously don't know why at least the Video/Music apps wernt XAML/Dx, to me that would sound like the perfect technologies to showcase a video/music app ...
currently the Music/Video apps are unimpressive apps that are frankly embarassing and MS could do so much better (ala XBOX dashboard) ...