I need something like this for my phone. I never used it but I heard about blackberry's messenger app that brought all the messaging services of its day together, why doesn't this exist on every platform today!?!?! (rhetorical, I know why)
Used to, there were a ton of multi-chat-network desktop clients back in the day. Several still exist... Trillian, MirandaIM, Pidgin. Not sure what the mobile scene is like, but this problem was solved decades ago
