Silky was a graphical client for SILC secure chat protocol. It was implemented using GTK+ library and due to it's cross-platform implementation it ran on Linux, Windows, OS X, *BSD, and Solaris. I also ported it to Maemo - aka. Nokia 770 Internet Tablet - which I was developing at the time.
I had registered the Silky project on SourceForge on 07/2003. The project page still seems to be available: http://sourceforge.net/projects/silky/
Silky was using libsilc libraries developed by Pekka Riikonen. In July 2004 I created the RPM package of libsilc for Fedora: https://apps.fedoraproject.org/packages/libsilc/.
Those were the days. :)
|Silky running on Linux|
|Silky running on Maemo development environment|