These guys got a YC interview. Problems solved: None.
I am not saying that their app is boring, but still, it doesn't solve any problem as such. And I wonder why they would need mentoring / funding for this kind of product.
http://www.reddit.com/r/startups/comments/23a9cy/we_got_a_yc_interview_heres_our_pitch/ I had no difficulty in seeing what the value was. Maybe you need to work on your presentation and articulate the use cases as clearly as they did.