MMS is the only open, federated, chat system that everybody has access to. Given that Purism wants to provide a fully open source alternative to the Facebook/W

MMS is the only open, federated, chat system that everybody has access to. Given that Purism wants to provide a fully open source alternative to the Facebook/Whatsapp walled gardens, I'd say that providing the already existing, open, interoperable chat solution that everybody already has is pretty important. When Matrix comes to my phone, I gain the ability to message with zero of my normal non-tech friends. When MMS comes to my phone I gain the ability to message with ALL of my normal, non-tech friends -- even those who "don't use" MMS. Why? Because, every phone plane includes MMS.