iphone timer app to code only we have the design concept

We are in need of an experienced iphone app developer, we are a design studio and have the design all approved and in place, we can supply the design in layered photoshop files in order for you to code. You must be willing to sign a Non-Disclosure Agreement and also supply links to previous apps developed. Details of project below: 1. Number of pages around 8 2. Timer Function. The user can time a particular object then stop the timer. They will then be able to take a photo and use the photo against the time. They can then start that time against the photo of the particular object and have a 5 minute warning, then a 2 minute warning, and then a 20 second warning before the time runs out. The waring will either be a sound file or a vibrate. We will only reveal what the app is about once the bid is won and our Non-Disclosure forms have been signed. 3. The above information will also have some various forms they can fill out. We will then develop the app at a second stage that will link the form information back to a database website, so experience in linking iphone apps back to websites would be a must. 4. We have all the design files ready with a brand identity and all correct size icons, designed to the correct iphone size and will be supplied in layered photoshop files with precise instructions. We are very clear of how this app should look and work.