http://rtic-lab.sourceforge.net This is a meager beginning of a "similar" product. Still need the front end although I have been working on the actual interface to the real time aspects. I am thinking that this software can be combined with Scilab (also open source and free clone of Matlab/Simulink) to use its drag and drop interface as the front end. If not, also take a look at the www.rtlinux.org website. There have been some users which have created interfaces to LabView and other related projects. -Edgar -- Edgar F. Hilton FSMLabs, Inc. voice: 850.893.0300 www.fsmlabs.com fax: 206.350.4EFH www.rtlinux.com