I don't know how you got that Tent is a competitor for Facebook. Tent goal is to be used by Facebook, Twitter, or any other social site so that they basically have an API to access the users data, so the users can have full control and ownership of the data.
Facebook will NEVER use Tent, you have got to be kidding...
? I didn't say it WILL be. It's goal is to be used BY social networks.. not replace them. Maybe FB won't use Tent, but perhaps whatever comes next will.