Apples iPhone and iPad today has a displayratio of 3:2. This is fine on the actual device but it is a bit unfortunate now that Apple has introduced airplay mirroring since a mirrored ipad screen never will fill the entire TV screen. There will always be some 18% on the sides that is just black. Now if Apple plans to enhance their "Apple TV" or even bring out their own television set one of the biggest selling points is obviously how you can use it with your iDevices. But if there will always be some blank spaces on the side it certainly would be a downer for me. Secondly it's almost inevitable that the handheld devices will merge with the stationary computer why you will soon be able to plug your phone into your desktop screen. And as you know those are 16:9. Now changing this ratio would be a huge blow to many of the appdevelopers. But if Apple are to plan for the future ahead I believe this is a necessary change.