Im pretty sure it is just a pseudonym, and not their real name. Or, Satoshi could be his real name. But I highly doubt it.
That is what I think indeed, a person like that wouldn't release his name to the public.
If that would be his real name, someone would've find him/her already!
What would interest me is: would the creator of bitcoin still trade and upgrade Bitcoin.
Or maybe he just made it and didnt want anything to do with it!