I'm keeping a close eye on http://matrix.org/ http://matrix.org/. To quote the homepage: "Matrix is an open standard for decentralised communication, providing

I'm keeping a close eye on http://matrix.org/ http://matrix.org/. To quote the homepage: "Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distributing and persisting JSON over an open federation of servers." It's not finished by far, since for example there is no end-to-end encryption yet [1], but the specs look really promising. [1] http://matrix.org/docs/spec/#end-to-end-encryption http://matrix.org/docs/spec/#end-to-end-encryption