Create basic GUI windows for minimal Linux distros
X11 Designer tool is used to design desktop independent basic GUI windows. A C code template source file is automatically generated after having performed a simple graphical editing. This is a simple way to create applications requiring only Xlib.
DWI (recently renamed to Estron and moved to http://estron.alioth.debian.org/) is a rapid application development system for creating graphical applications that manipulate info in an SQL database. Uses XML and Gnome Glade for the GUIdesigner.