It might be a good idea for you to look at currently open-source iPhone apps and check out the source code. Specially those that interact with the camera and se

It might be a good idea for you to look at currently open-source iPhone apps and check out the source code. Specially those that interact with the camera and sensors. Here's a few links I found for you: http://opensourceiphonesoftware.com/ http://opensourceiphonesoftware.com/ http://sunsetlakesoftware.com/2008/10/02/molecules-source-code-now-available http://sunsetlakesoftware.com/2008/10/02/molecules-source-co... http://petersteinberger.com/2009/05/open-source-iphone-apps/ http://petersteinberger.com/2009/05/open-source-iphone-apps/ And one that interacts with the camera: http://code.google.com/p/zxing/ http://code.google.com/p/zxing/