Basilio Noris PhD from the Federal Polytechnic School of Lausanne created a remarkable program that is perfect for the demo of some tasks that solve the machine learning algorithms (classification, clustering, and regression using the various methods). In one program are captured the libraries, algorithms and code patches that could be found. Unlike Matlab, here GUI runs fast in the interactive mode, thus it comes out very well.
MLDemos 0.3.2 for Windows (minimum requirements: XP SP3)
MLDemos 0.3.2 for Mac (minimum requirements: Snow Leopard)
MLDemos 0.1.3 for Linux 32bit (deb) (build for: Ubuntu 10.04)