Need Seek Graph on iPhone App

I like playing computer easy and medium.  But its impossible to play them on the iPhone.  There is no way to play the computers because you can only challenge a friend, and though I have tried, the computer will not become my friend.

Also I don't like creating games, I like reply to other seeks.  ICC and Freechess both have apps on the iPhone that have a seek graph.  Both of them have the ability to play computers on the phone.  With chess.com you can't do this.  The only way to trick it to work is to start a game with a computer via a website and then go to the iPhone.  It will pick up the game on your phone and then you can rematch as long as you want.  But you can't initiate on the phone.  

Its great to be able to play live on the phone, but without a seek graph, I never every play there.