JIT is not available on any "modern/metro" applications (includes phone, desktop, xbox, whatever). I'm pretty sure this will never change. We'd either have to make a fast workaround (very unlikely to even be possible), or only support jailbroken environments.
The 3d acceleration APIs available are also terrible. There isn't really much to say here. It just sucks, hard. There isn't a way to fix this unless you bypass the official API surface.
The 3d acceleration APIs available are also terrible. There isn't really much to say here. It just sucks, hard. There isn't a way to fix this unless you bypass the official API surface.