It then turned into more of an app platform where social apps can share a common user base.
So what we are then depends on the kind of user coming to the site.
To users we are what apps have already been created:
Chat, synchronized movie viewing, a file/image host, a place to store your notes across computers, storage.
To developers we are what our backend system provides:
App platform, storage, message relay, key value store (both private and public), proxy, torproxy, video streaming, peer discovery. More Info »
For developers these tools could be used to support an app or just for their own value.