As I was just needing to change 20 texture import settings in an Unity iPhone project I noticed a strong force inside me to write an editor script that is able to change texture import settings for multiple files at once instead of having to click 20x change import settings and get mad…
To avoid such a madness please find in the Unify Wiki a new editor helper script called iPhoneTextureImportSettings.cs which allows to change the most often used parameters for multiple files at once, like texure format, mipmap on/off and the max. texture size. Extend it to your own needs if you like!
Enjoy!
Martin
Please see a screenshot here: