What are the Build Settings for a Universal iPhone and iPad Application

Question

What would be the settings to build and have accepted an universal app for both the iPad and iPhone?

That is, what would be the settings in Project X Info > Build fo

Answer 1

This site gives a good information how to make a universal binary.

http://iphonedevelopment.blogspot.com/2010/04/converting-iphone-apps-to-universal.html