I went to the .xxx presentation at Domain Roundtable in Seattle. It was excellent. The people behind this have a lot of good ideas.
My daughter is named Stephanie. I regret that when anyone goes to Stephanie.com, they find a porn site. Now, the owner can move over to Stephanie.xxx, and sell Stephanie.com in a few years after his traffic has migrated over.
What I liked especially about the .xxx proposal is how they plan on handing initial distribution of the premium keyword domains. Initially, the top, most obvious 100 to 200 domains will be reserved. Then, they will be seeking written proposals which will need to include a cash bid plus plans for marketing .xxx as a brand. The registry will take the big domain cash and use it to market the .xxx brand.
.xxx will not allow child pornography, since it is illegal most places.