[airlied]: I'd be a lot less annoyed with companies like ATI if they shipped drivers (even proprietary ones!) that actually supported their latest cards.
The R5xx-series cards have been out for MONTHS now and there's still no acceleration, 2D or 3D, Open Source or proprietary. Good job, ATI!
Anyway. I'm excited about the way that things are headed, and I'm really glad that other people are getting excited, too.
To the people who were wondering - the "AI" in "AIGLX" stands for Accelerated Indirect - it's basically required to do a lot of neat things like using the local card to render OpenGL from a remote application. It also enables all sorts of kick-ass effects like the new bling in metacity and compiz (which doesn't work yet, but it's only a matter of time).