Nice! I hope keyboard computers will find their niche market. I've been looking for one that I could carry around, mostly in-between home and my coworking where I already have displays. My MacBook works just fine but I've grown to dislike carrying around a laptop. It's a bit heavy, there's the temptation of using it everywhere, and it's just average on comfort when sitting in front of a bigger display.
The RPI computers aren't a good fit for software dev, the closest thing I found is Project CJ64 [0] that relies on a Framework board, but that's not a finished product.