Ah, thanks for posting this!

I will probably be implementing the 16K version soon, once I figure out the inconsistency of the documentation around the select lines. Some RAM wouldn't go amiss either, so I can see how much more fun BASIC-G is.

I also have a version of CamelForth-80 that I've been working on for the SG-1000, but I put it on the shelf because keyboard scanning is boring. If I can pick that back up, I can probably port it to this as well.