I met the Modern Device team at Maker Faire and they were nice enough to agree to carry the ExtraCore.They now have them up on the web site.
“Its small size makes it well-suited to applications with stringent weight and space requirements, such as R/C planes, wearables, and spacecraft.”
Spacecraft huh? That would be pretty cool.
I got several RBBB kits from modern device when I first got into Arduino. Those kits were part of the inspiration for the ExtraCore.