we've been on Fleep with our distributed team of a dozen people for a year now and very happy with it. the quickest way to think about them is that if Slack is

we've been on Fleep with our distributed team of a dozen people for a year now and very happy with it. the quickest way to think about them is that if Slack is a modern take of IRC, then Fleep makes Skype's model of persistent p2p chats work (fast, mobile, syncing well, file storage, some clever UI improvements, web access).