MathCad-like front end for Sage
I imagine this to be a recurring question / topic in Sage communities but, if so, my search skills are failing me. The only thing that I've found is this project started (and abandoned?) in 2009.
So... are there projects that aim to create a front end for Sage that features an editor like MathCad's? Is there some previous work that one can relate to? Previous research? Ideas? Web-based / desktop based? Any bit of information would be appreciated.