general ggi questions

[soyt]

Hi there. 

I'm fairly new to video hardware programming and I happen to
have a few questions about ggi design.

First, why is the ggi design better (in your opinion) than the linux fbdev,
or the xf86 4 DRI? Any pointer to a document describing the differences,
pros/cons?

About ggi3d, what do you want to put in there? A kind of rendering
pipeline abstraction over openGL or so? I really wonder.

Thanks for enlightenment.