I am working on the V1.0 model, PCB's should arrive in a few days. I think the V1.0 release should be good enough for others to make. The current model is nice, but there are a lot of improvements in the pipeline particularly regarding aesthetics.
It’s extra key presses hundreds or thousands of times a day ( I work with numbers). I also need a 10 key, but a separate 10 key is fine. I’ve been eyeing one of the ergonomic keyboards with the trackball because the central trackball would cut my hand movement by 50% (estimated).