The creator of EOS is Dan Larimer, he invented the Bitshares chain, the steem chain and EOS.
He has stated EOS.io, the EOS company producing the chain code initially will not launch a social network, and simultaneously in what seems somewhat contradictory to that, has also endorsed me directly, with an upvote on comments suggesting he might. A chinese company named ONO will be launching the first expected viable english/chinese social network application on the EOS block chain operating system and platform. Anything else is rumor and subject to change.