The why would appear in the most widely used mobile os in the world? I really don't think it was "left in" by accident. I admit, i may have gotton spoiled, but many others can feel my pain. That is all i am trying to say.
Posted via Android Central App
Here is an article from Android Police that explains it: http://www.androidpolice.com/2013/1...used-for-internal-testing-and-debugging-only/.