Dear Sir.
I have been developing mobile apps over 4 years and now I have a great experience in mobile development.
I've read your job description carefully, and I am very interested in your job.
I'm a talented mobile developer with experiences in various fields such as utilities, games, social network, Google Map, GPS apps and so on.
So, I can do your job in a short time than anybody with high quality.
I believe my skills would be ideal for your project.
I want to work with you for a long term partnership
Now I have no working project. So I willing to work only for you.
I have some question.
I want to know if you have any interest what about field.
So, I know that I am whether or not you need, and I think I'd better be able to help you.
Please let me know your detail requirement.
Please meet us and please give me chance to work with you.
I am available to chat by IM, email or Skype, and would be happy to set up a convenient time to discuss the application you're moving and some ideas about the safest way to get it into the cloud.
Thank you and regards.