I'm currently running it on Slackware 12.1 and it works great.
Some features include,
"3D Effects - Easily transform and animate any display object through 3D space while retaining full interactivity. Fast, lightweight, and native 3D effects make motion that was previously reserved for expert users available to everyone. Complex effects are simple with APIs that extend what you already know."
"Visual Performance Improvements – Applications and videos will run smoother and faster with expanded use of hardware acceleration. By moving several visual processing tasks to the video card, the CPU is free to do more."
http://labs.adobe.com/technologies/flashplayer10/
Here's a cool demo - http://papervision3d.org/
Looks like the folks at the Gnash project just can't manage to get ahead.
