http://developer.apple.com/library/mac/#qa/qa1625/_index.html
I just created an app with Xcode 4, PhoneGap 1.0, ChildBrowser, and local storage. That project is a template, the basis for starting any other projects I do in the future. Luckily for me, Apple has already created step-by-step instructions on how to rename an app (in this case, my template app) so that I can save the original as a template and use the renamed version as the app to submit. Read the above to see how we’re supposed to rename apps in this way, for Xcode 3 and 4.