GUInseng - a GTK+ based installer for Linux
With Guinseng Installer you can create your own graphical installation packages for Linux. It is not a replacement for package management like RPM or DEB, it's just a GUI for installation or/and build processes. In most cases, you have already an installation program for your software - e.g. based on automake. GUInseng is just a wrapper around a ready installation program.
You can download the program here.