Can you explain a lot more about what you're looking to do with the App Links? We understand how it can be used to point to your own iPhone or Android app. Do you have phone apps for your site? If so, what are you looking to do with App Links to integrate into your phone app?
If you don't have a phone app, how are you planning to use App Links?
As Melissa said, it's on our to-investigate list, but you are seriously the only person who's ever requested it. The overwhelming majority of our users don't have phone apps for their sites, so it's not something that many users of JFBConnect would be able to take advantage of.
Knowing how you'd use App Links may help convince us that it's something we should investigate more.
Thanks,
Alex