Polkadot <> Kusama Bridge

The progress on the bridge PAH<>KAH is impressive. Once the fees are reduced, I anticipate it will see widespread use. However, I have a few questions:

  1. Once you have, for example, DOT in KAH, what use cases does it currently have?
  2. Is there, or can anyone create, a pool in KAH with DOT and KSM as assets (foreign-native)?
  3. Is there a team working on a UI to utilize the Asset Hub pools? (This question might not directly relate to this post, but it ties in with the previous questions.)