Comment by andrey_utkin

Here is me typing something like "cat /etc/*release", sorry for low quality: https://github.com/andrey-utkin/wearable-computer/blob/maste...

I'd say it's OK. It's not even remotely on par with typing speed on laptop-size keyboard, but I'd say it provides a reasonable trade-off. And it has enough keys to use desktop software without much pain one way or another.