Developer for Android/iPhone application

I’m looking for a developer who can create an Android as well as an iPhone application to be used together with our mobile website. The application consists of two main search functions. One by scanning a barcode (connected with the ZXing barcode scanner app) and one dependant on search query input by the user. Both search functions have connect to the mobile website with the search (barcode/ean or user input) in the query string. Besides the search functions there have to be two other tabs in the application. One with coupon codes and one with popular products. For both tabs the information will be provided in a xml file available on the internet. Information in the xml file consists of an image with text information and has to be displayed in the app. Design for the app is ready and available on request. Design for the icon, based on our logo, has to be made. App has to work on Android from version 1.6 and iPhone 3 and higher. Both apps need to be published in respectively Android Market and Apple App Store. Any help with these procedures would be appreciated. It’s important that we receive the source code from the application and that the worker is available in the future to make some modification on request.