Set aspect ratio for iPhone and iPad

Hi,

Have seen in some tutorials that they set the aspect ratio to iPhone or iPad ratio. Looking at the options I have with Unity3 there are 5:4, 4:3, etc. however none for iPhone or iPad. How can I add it so I can use it. Thanks!

Camera.acpect = 5.0 / 4; ?

This will simply stretch your view, which is not what you want for your 3D in most cases.