Tox#GUI, a GUI for tox written in C#/MonoDevelop
Very early alpha stage, though a number of things already work. It requires ToxSharpGuiGTK.dll or ToxSharpGuiWinforms.dll for the actual GUI.
(C) 2013 Coren[m]@Break (GPG key id 00F5DC6D), licensed under GPLv3, which means NO WARRANTY.