Traviesadora is a program for chatting in privacy. It provides extra features for sending commands to the serial port of your partner. A script is responsible for serving these commands. This can be used for example for letting motors run FASTER or slower on the partner's side. You can build your own hardware interface and define with scripts how Traviesadora talks with your own hardware interface.
There are two chat protocols implemented till now. One is Jabber and one is Nobrachat. Jabber is an instant massaging protocol like ICQ, or MSN Messenger. The difference to these protocols is that this protocol is open and can be used by anyone. This means that there are many free programs which use this Jabber protocol. But there are not only many Free Chat programs implementing Jabber, there are many free and independent servers too. This means that the chats are not controlled by a single Company. You can choose the server you want.
Nobrachat is a very simple chat protocol. It just sends text messages to the partner. The address of the partner you can get from a list which shows all members.