Social Networking Android App

I have an existing app written for webOS. This app has realtime chatrooms, instant messaging, friends lists, user search, user profiles, and photo uploads from the phone. It connects to an API written in PHP for getting data, and connects to a HTTP push server written in node.js for realtime communication. All data communication is done with JSON. I need this app fully re-written in native android code. Full designs for the app will be provided, as well as icons and images used for buttons etc. I would prefer someone who can heavily comment their code, and I would prefer someone who has experience in writing iPhone apps as well, for a future project, however this is not required.