Both the client and server now have nice GUIs and store their respective settings in files.
The server has been updated to work with the new CHX-I Packet Filter v3.0.
Development is underway on this and I've set up a mailing list to inform people of when new releases occur.
First new functionality will be configurabe knock sequences, followed shortly by GUI's for the client and server. :-)
Version 0.1 successfully implements a Port Knocking scenario, tested both locally and from Spain->UK.
Personally I run a graphical remote control application on the secured port, but of course you can have anything you want running there.
Now I just have to get some people to help with the development...
Currently the programs run on command line, I'd like to get GUI's going for both, so I need people with GUI experience with Visual C++ and GUI (Swing?) experience with Java.