I think before that you need to seriously look at the UI controls. I was shocked to see how bad they are. Don't get me wrong this is a great effort but visually it reminds me of web pages circa 1994/5 and whilst there is good functionality, deployed on a device the examples look nothing like native iphone apps nor do they follow any UI guidelines laid down by Apple because in many cases you dont have the rendering of certain controls to follow these guidelines.
But hey keep going!
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