I have implemented wpcom-connect, what can i do with it?

I spent a couple of days getting this working.

https://github.com/scripting/wordpressIdentity

I was hoping I could use this signon to find the user's blogs, and posts in the blog, and even allow them to edit existing posts or create new ones?

If this is possible, and if so, where would I find docs for the API?

Thanks.. ;-)