I've had the iPhone 3G and 3GS and both had typical LCD screens that were polarized (if you wear polarized glasses and rotate the device the screen will go from light to dark depending on the angle). With the iPhone 4 the screen appears to be tinted blue when viewed in portrait and red in landscape when viewed through polarized lenses. It also turns all sorts of colors if the device is tilted. It is nice that the screen is visible in both portrait and landscape but it is going to take some time to adjust to the color anomalies. Has anyone else noticed that the phone is like a stick of greased butter?