All it takes is for any of the clients like Amethyst or Primal to provide relay service directly from their Android apps.

Tens of thousand relays coming up overnight. Not that I mean that all relays should be public to the world, but they would certainly help to keep a good backup of what happens. For example, I would enjoy downloading the texts from the people that I follow, don't have particular interest in the whole world but would be nice to replay the conversations here some 20 years in the future that I've saved on the phone.