This ticket is mostly about namespaces other than main.

We should make sure that the following can be handled gracefully by the app:

1. All links from external sources (search, browser other apps)
2. All links from within the app (taping on a link in a page)

To ensure the best behavior possible, we should try the following in order:

1. For main namespace (any any other name spaces that the app can handle), the app should open in the normal page browser.
2. If unable to do #1, then the app should fall back to an generic internal web view.