Titano is an IDE built with Glade using GTK+. It uses GtkEditor as a main
editing widget though you will be able to use your favorite editor as an
editing component in Titano via Bonobo technology.

Features (some of features are only planned and may appear not very soon):
 o Project managment with automake/autoconf support. 
 o Support for different languages. 
 o Bonobo editor components. 
 o Integrated debugger. 
 o Code exploring tools. 
 o And many other things you may need for developing. 

WWW: http://titano.sourceforge.net/