you can log in with your posting key, and have the same content/followers/and payouts, just a different interface/design, and we are working on new features as well.
Steem is a blockchain with decentralized apps / front end like Steemit.com, Busy.org, etc. using the same identity/account layer and blockchain with a distributed ledger sharing and handling all the content/transactions history. This make Steem decentralized