There are actually very few controls that you need to fiddle with while you're taking the picture. Take white balance for example - you only need to set it when

There are actually very few controls that you need to fiddle with while you're taking the picture. Take white balance for example - you only need to set it when lighting conditions change, it's very unlikely that you need to change it on every shot. A touchscreen for that would be better than having to scroll through the choices with a control wheel or buttons. The modern trend of replacing descriptive text with icons needs to die.