Xinerama & OpenGL: The Cairopocalypse?

[matt f]

I'm not sure where better to post this.

Xinerama, last of my knowledge, only supported one display of OpenGL. 
I'm well aware that nVidia & ATI video cards with multiple outputs 
support OpenGL acceleration for both, but i'm talking about the case of 
two or more seperate video cards.

This would seem to present some difficulties for X's current propsoed 
manifest destiny of Cairo + Glitz, upon which there seem to be a host of 
SVG and other standards.

Is there a silver bullet to this solution, or is there really a problem 
up ahead?

Myren