ZDnet wonders if this is innovation or gimmicks, and Gizmodo hits the nail on the smartphone head:
Truthfully, there are too many modifications to go into, and most of them aren’t things you’ll ever use. Which is really the S IV’s biggest problem.
In other words, Samsung’s over-the-top Broadway launch for the Galaxy S IV might be the perfect metaphor for a phone that has everything you don’t need: A little song, a little dance, a little seltzer in your pants.