We have recently developed a powerful chatroom program for multiple HamShield: LoRa Editions.
While lots of fun, LoRaChat has some very serious and practical applications for emergency communications, coordinating resources, and communicating long distances in very difficult conditions. LoRaChat is a great solution for non-line of sight, mobile applications.
LoRaChat supports chatrooms of many devices and allows the configuration of the various radio parameters for optimizing range vs. speed.
We will be doing more development on LoRaChat, as well as integrating its chatroom function into our LARPS protocol.