Well, there is nothing to prevent someone from creating a Facebook-free app index. And I'm sure that will exist soon.

I think omnilinks and applinks are both cool. Anything that can get us closer to a pseudo-standard for intra-app linking is a win.

Agreed, and do think that will exist in the near-term as well. It's so exciting to see all the movement in this space.. it's a huge win in the name of user experience and I think that things will continue to move quickly here.