I don't think you need to spend any time on it unless you think it would benefit the SDG user community at large. We are going to purchase this tool anyway and I am done with my testing.
The source code was not in the zip file. Just the .dll files. As a company, I think we would be interested in getting a working version of IronRuby, though, because we really have big need to reference other fields in the same row. Right now, we are doing all that kind of work in After scripts.