We will submit detailed specifications on exactly what would be required, but for now the easiest way to explain what we are doing without explaining too much is to have you look at the Target iphone application. The features and scope of what we are preparing for are similar but not exactly like what target has, but it gives you a good reference to what we will do.
The application delivered is a CLIENT SIDE web application only. We already have web services written that supply all of the data for the various pieces of the application that you would need to call to populate your data.
The application would include the following functionality at a very high level: Shopping by category, wish-lists. user preference screens, log in screen, intro splash screen for advertising.
You would need to provide us in your response an estimate based on what is described above along with a time estimate. If both estimates look good we will submit to you the real UI designs that are similar in functionality to the target iphone app but different for you to provide us with your final estimate.
Remember, the estimate is only for the iphone application itself. The back end web services that provide all data are already available for you to code to.