Mono.Terminal is an ncurses based UI Framework.
The miniminum requirement is mono 2.10. Linux is the main target, so do not expect it to work on windows for quite some time.
Mono.Terminal is licensed under the terms of the MIT X11 license.
You can reach Andrius Bentkus via email or IRC, mostly txdv or bentkus on every major irc network. Most success guaranteed on irc.freenode.org.