gmessage | an xmessage clone based on GTK+ | Mehr ...
gmessage provides an easy way to display scriptable pop-up dialogs. Based on the GIMP Toolkit, gmessage fits in well with desktops such as GNOME, XFce, and ROX. . This software is named "gxmessage" by the upstream author. . Homepage: http://homepages.ihug.co.nz/~trmusson/programs.html#gxmessage