If I was going to start a Fallout petition, it'd be asking Bethesda to give Obsidian the rights to all the Van Buren materials. Sure, they're already slated to co-develop Wasteland 2 with inXile (which is going to be like a real Black Isle reunion, unlike the practically in-name-only team Interplay recently started*) but man, Van Buren!
*Maybe Project V13 won't suck. Not holding my breath, but there's a chance.