I just transferred some photos from my Macbook to my iPod Touch and my iPad 1st gen. I found that photos on my iPad are a tad warmer than they are on my Macbook and my iPod Touch. Has anyone experienced this before?
Different displays ship with manufacturing tolerances which will give each unit fractionally differing colour output; in addition to this, manufacturers may choose to ship with factory default colour settings. To complicate matters further, the capacitive covering over the iPad screen may introduce a colour cast of its own.
The only way to get reliable colour reproduction is to use a colourimeter to calibrate the screen, and this is now available if you have a Spyder, who now have an application available on the iTunes AppStore.