Four years ago it did not exist at all - the crowdfunding campaign to develop it started Aug 2017.
The final revision only started shipping in December 2020 (the first early batches in Nov 2019), but not all orders have been fulfilled yet because of supply chain issues. Shipping is supposed to resume soon though: https://puri.sm/posts/the-ball-and-supply-chain/
It's worth the wait. A full Linux phone that plugs in as a computer with USBC. A bit buggy right now without camera+gps and too many apps, but when software is ready this should be the future of mobile!
The final revision only started shipping in December 2020 (the first early batches in Nov 2019), but not all orders have been fulfilled yet because of supply chain issues. Shipping is supposed to resume soon though: https://puri.sm/posts/the-ball-and-supply-chain/