Hi, Considering the fact that some of the Boosters work on the GUI library, I would like to throw something to the mix: http://cpptk.sourceforge.net/ This library uses some template techniques, especially in those places where GUI integrates with C++ (callbacks, variable binding, etc.). As a result, the library is highly generic, uses some of the Boost, should be compatible the rest of Boost and may benefit from further "boostification". Anyway - please note that the concepts used in this library (well, and in Tcl/Tk which is used as an underlying engine) are very different from what normally comes to mind when we think "GUI programming". In particular, this library is not object-based and does not use RAII at all (apart from a couple of places which are not related to GUI), but somehow still manages to "keep the shape". It may help to put some things in perspective. Your comments are welcome, -- Maciej Sobczak : http://www.msobczak.com/ Programming : http://www.msobczak.com/prog/