The microSD card in my GPE S4 might become useful again once this update rolls out… I’m wondering whether I’ll have to move files around on the card for poweramp to be able to access the music, though…

Starting in Android 4.4, the owner, group and modes of files on external storage devices are now synthesized based on directory structure. This enables apps to manage their package-specific directories on external storage without requiring they hold the broad WRITE_EXTERNAL_STORAGE permission. For example, the app with package name com.example.foo can now freely access Android/data/com.example.foo/ on external storage devices with no permissions.

External Storage Technical Information

Imported from Google+ — content and formatting may not be reliable