Will AMD's XvBA Beat Out NVIDIA's VDPAU?

[Gamester17]

Actually, somebody should really change the GL setup too so that it falls back to ARB programs if available (which do work in current Mesa) and to properly detect GL extensions. Unless I'm out-of-date and somebody's already done it, of course.

Couple of the XBMC developers focusing on graphics are currently working on refactoring the graphic/rendering code in XBMC to make it more abstract (getting rid of SDL dependencies and enabling future XBMC to not only support OpenGL for renders in the future, with XBMC being multi-platform and all), ...however I do not believe that they are specifically looking at that, so a feature request ticket(s) on our trac for tracking purposes would be more than welcomed http://xbmc.org/trac

Else we forget

[TrentZ]

(Well, except for VLC because they use Wx, but you're not talking about VLC.)
http://xbmc.org/trac/ticket/6382

VLC uses Qt4. wxWidgets GUI was deprecated circa 0.9.0.