Design of experiment software?
 

Maybe I'm asking too much here, but I'd like to know if there is a DOE software for Linux? Something like this: http://www.sigmazone.com/doepro.htm

And yes, I tried to google it. ;)

I don't really understand what this Excel plugin does, but I know of one tool that you may be interested in for quickly making GUI applications:
http://entity.sourceforge.net

I used it once and it worked great.

Yves.