Hello, I am getting close to wrapping up version 0.9 of the Dataflow library (I think the 9 stands for how many times I've revamped the concepts :-)). The exciting new addition is that I have completed a simple GUI dataflow editor! Screenshot: http://tinyurl.com/3cblmo I have never been more excited about making an app that doubles a number :-) For this version, I want to iron things out a bit more (docs need a ton of work) before I package it up (current code is available in the sandbox and docs on website). When the ironing is done I will request review for the generic layer and Dataflow.Signals. Dataflow.Blueprint has a long way to go but I think it shows that the generic layer is useful. And the GUI shows that Dataflow.Blueprint is useful :-) The GUI is built with FLTK (quick and easy), but I hope to switch it to the new cppgui lib at some point. Best regards, Stjepan