I'm trying to create a universal iPhone/iPad app using this method: http://www.enscand.com/roller/enscand/entry/ready_for_ipad which is also described all over the web. My problem is that the "Upgrade current target for iPad" line is grayed out and doesn't appear at all when I right click the target.

I'm working on an app that I inherited from someone, and have tried this with an app that I wrote entirely myself (no problems on that one). And yes, I'm sure that I'm selecting the target.

Just wondering if anyone has any insight into what checks are being run that would cause this option to be unavailable.