Runefox writes "Cerulean Studios, the company behind the long-lived Trillian instant messaging client, has released preliminary specifications to their proprietary "Astra" protocol, now named IMPP (Instant Messaging and Presence Protocol), which provides continuous client functionality as well as mandatory TLS encryption for clients. According to their blog, Cerulean Studios' motivation for the release is to promote interoperability among the throngs of IM services and clients available by allowing others to also use the protocol. Future concepts include federation with XMPP. While the documentation is in an early state and the protocol is claimed to still be in development, it is hoped that it will help decentralize the very heavily fragmented messaging ecosystem. It's implied that, in turn, greater options for privacy may become available in the wake of the PRISM scandal via privately-run federated servers, unaffiliated with major networks, yet still able to communicate with them."