Samsung Galaxy S6: Questions That Need Answered Before Considering

I attended the Samsung Electronics product launch event in Barcelona during Mobile World Congress (MWC). It was a huge launch, intended to win the global audience over with the Samsung Galaxy S6 and Galaxy S6 edge. Samsung had a lot riding on a successful launch as they have lost significant market share to the Apple iPhone and want to get it back. All in all, the event was good, but generated a lot of questions for me that Samsung wasn't ready to answer yet. I want to go over those questions.