[Hitcher]

It also fails on the ipad touched skin because it doesn't have the folders you assume it does 720p/1080p
Touched uses the new way of having a skin folders which lets you use any folder name you want in this case the folder is named 4x3Hirez https://github.com/xbmc/skin.touched
You can easily do the proper check in your app by using the lines in the addon.xml that define it and gives you all the dimensions to use with you calculations https://github.com/xbmc/skin.touched/blo.../addon.xml

PHP Code:

<res width="1280" height="960" aspect="4:3" default="true" folder="4x3Hirez" /> 


+1 for this as I'm not using 720p/1080i folders anymore either.