Add a few features to an existing iPhone app (Objective-C)

Hi, I'm looking for a developer that can add a few features to an existing Twitter iPhone app. Below are the following features I would like to add: - add twitpic support - twitter search - add support for multiple Twitter accounts - twitter trends - on tweet view: - make links clickable and open in existing browser view - have @mentions open in existing user timeline view Please only bid if you're fluent in objective-c.