nice job with v4!
the back button returns to home not back, might rename it to home if your in a search or album it will take you all the way back not back like expected.
It depends on how the skin is set up.
agree, but might be worth while for skin documentation or a API on the application to set this as a standard so that skins provided with the App dont have inconsistancy's as to the behavoior of a "back" button.