Quick Mobile App

I would like to develop a simple mobile app in a cross platform who can export to ANDROID , IOS and WINDOWS PHONE. App functionality--> just a frontpage screen with 3 buttons. Each button will open inside the app a web address i going to provide. The webpage browse will be always inside the app. The PSD frontpage is already finished. important--> application should have BACK BUTTON, in order to return and select any other button. The winner should complete app and upload them to each store. We are going to provide access for each store with developer account Looking someone can start right now and finish asap.