I'm not going to speculate on identity because it doesn't matter.
My guess is he or one person of "they" were a fan of Pokemon (Satoshi Tajiri, creator of Pokemon, and the producer of the first game boy game, Shinichi Nakamoto).
Another thing someone once pointed out:
Although he never written in Japanese, let us look at character meaning in Japanese name. Satoshi has many different ways to write, but Nakamoto is same by 99% of surname.
中本 - most common way to write nakamoto
中 - inside or middle
本 - book, or using in word meaning is like main or original
智 - best way to write satoshi, used in words like wisdom, knowledge, a sage.
Hence, "wisdom in story" or, perhaps more eloquent: "wisdom in origin".
These both could have been a basis for the name.