Android & iPhone App development and Arduino C programming -- 2

Hi, I am looking for someone who is an expert in the field of making android and iPhone applications, you should have knowledge of Arduino C programming as well. The project is about developing an android and iPhone application to send commands to Arduino and receiving the monitoring information through the application. The other part is about writing the Arduino C code to make the sensor work. The application can be build with single programming language that would for used both platforms android and iPhone, or you can use different languages to develop it for each platform, it is up to you how you wish to develop it. Further details can be given through chat, such as requirements and application design screens, etc…