TinyFugue is the only option known by this author for the various flavours of UNIX.
TinyFugue
TinyFugue will compile and run on almost any UNIX system. It is a screen-oriented client with high flexibility. However, I believe there is something of a learning curve for it.
TinyFugue appears to be freeware.
You can find out more about TinyFugue here: http://tf.tcp.com/