Hello All, I've been looking around for a calibration disk and learned that the iPhone has a couple of apps for calibration and one for 3D TVs. One of the apps is from THX. Apparently, I need an apple HDMI connector for the iPhone. Before I spend money on a cable with limited use, has anyone used these apps? Are they as good or better than buying a calibration disk? Please comment if you have any experience with these. Thanks.