Social Reading App Concept

I love reading so as my weekend exercise, I started to design what I imagine to be a social app for reading that would be connected with a ebook reader on the target phone. This screen shows an individual user's profile, with all books currently reading and finished reading. The phone's ebook reader would talk with this app to pull in progress (what page the user has bookmarked or left upon exit of the ebook reader app).

Tapping on a row will pull up the user's annotations or comments of particular passages or pages of a book. A user could also tweet out his/her progress or comments.