If someone says: "Hey, I replace the blob with open bios.", this is a right motivation.
This is not a motivation: "Why does the guy this?" "It isnt better then blob." "It relies on atombios." "Waste of time" "..."
Its flashable to a card, a replacement for ATI/AMD video bios. Like this http://www.techpowerup.com/vgabios/
Ideally same functionality, but open. You dont get a faster or better card. There is still a video driver in OS.
Maybe you can change some values, but it is not a goal.
I think I should write a FAQ.