6) What do you think about the quality of open source graphics drivers? What graphics hardware do you use?
I think they aren't ready yet, and I think we're in a dangerous position where distros are treating them as if they are.
I use Nvidia's closed-source drivers on a GeForce 9800GTX. My next GPU will be a more-powerful GeForce card with closed-source drivers. The things I work on require this.
Also, I find it completely ridiculous that we're shipping open source OpenGL drivers without S3TC support because of patent concerns. Today, that's like shipping a web browser without .jpg support!
I feel very pragmatic about this; open source video drivers being shipped simply for dogmatic attitudes towards software freedom is costly to Linux as an ecosystem.
I believe the only way that we'll ever find a reasonable way to have open source drivers is if Nvidia (etc) start developing their drivers as open source from the start, as first class members of the community.
I don't buy this attitude that GPU driver development is just _so hard_ that mere mortals can't do it, and thus there's no value to being open. But I do think there's no way that open source drivers can keep starting from scratch as each new generation of hardware hits store shelves. The cleaner solution is to open up the source to drivers we already know work, and have everyone--hardware vendors, distros, individuals--working in the same source tree. Every one would win.
I continue to dream of a better world.