Private and Secure Instant Messaging
Gibberbot is a full featured instant messaging application integrated with the “Off the Record” encrypted chat protocol. OTR. The app is built on Google’s open-source Talk app and modified to support the Jabber XMPP protocol. It supports not -encrypted chat as well. You just need an account on a jabber/xmpp server. It should be able to avoid firewall & censorship if used with the application Orbot (Tor on Android), but actually I didn't succeed in installing orbot on freerunner.
OTR works only if the user/client you're talking to has OTR installed. OTR is compatible with most xmpp client like pidgin, psi, psi+. xmpp protocol allows to connect to other protocols like icq, facebook, vkontakte, yandex through bridges, so that you can chat with your facebook (...) friends and others.
Please report here any other useful info or mistake about this application