Not important, just wondering.
The goddess of light, Eos. ETC write it Eos, not EOS.
Scroll down some to get to Eos:
From the Article:"In the end, it was [former Senior Communications Specialist] Patricia Bornhofen who had a stroke of inspiration and came up with “Eos,” the goddess of dawn, which fit…
The title of this forum suggests it's not an acronym. That said, lore suggests that early on in development it may have been an acronym in ancient times for Express/ion-Obsession-Some other console it was intended to supplant.I read it on the internet somewhere so it has to be true.