I think there's someone working on that, or planning to, on the ossi forums. It sounds like a great project. I think the c pubescens tend to be hardy down to freezing or so too.

I'm hoping they'll give me some growth during cool weather, and figure out how to proceed from there. It was extraordinary how different tomatoes did the growth/fruit set/sizing up so differently in the trial, and it wasn't necessarily strongly linked to days to maturity.