How can I support iOS 3.0 and not iOS 3.2

I have set my base SDK to 3.0 but开发者_如何学Python don't want my app available for iPad (3.2).

How can I accomplish this?

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your app will be rejected if it doesn't run on the ipad.
See point 2.10 of the App Store Review Guidelines

iPhone apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution

If you just don't want to make a dedicated iPad-Version just start with a iphone-only template.