XpressChat - Do you know what the "fellow traveler's syndrome" is? This is when you tell a perfect stranger your innermost secrets, just knowing that you will hardly ever meet again. Usually this happens when you travel by train, taxi, hitchhiking, long airplane flights - when next to you for a long time is an accidental ally.
XpressChat allows you to talk with a random person. Run the program, a connection to the server is established. Click "Enter" and choose your language. Then one of two things: either you have to wait for the interlocutor, or you connect to the pending talks.
At any time you can leave the conversation, and your interlocutor will be notified.