But funny enough I have to admit that I would have an interest in something like this too 
Actually I did develop a free firmware including a small Bluetooth stack for the MetaWatch smartwatches some years ago. It was quite fun! What I currently do not like at all with today’s smartwatches is that they basically try to cram a smartphone into a watch case. This is a nice challenge from an engineering perspective but horrible from a user’s perspective. I want a watch to:
- show me important information, like time, all the time and not only when the display gets activated
- must be readable even in the brightest sunlight
- must have battery life of at least a week with a single charge and average per day use
- should not be thick, bulky and/or heavy
The Pebble watches were IMHO a very good approach to these goals - and actually I still wear a Pebble Time Round every day.
I could imagine to start with a playground hardware platform, more like a pocket “watch”, a bit bigger etc., to explore technologies and then to shrink this into a writ watch one day. As CPU platform I could imagine that the Nordic Semiconductor NRF52xxx could be nice. The issue is though that parts of the SDK are not free, like the Bluetooth stack.
So yes, the idea is not fully out of scope but it is currently not on our roadmap
Cheers
nicole