As one reviewer I read stated (roughly): He'd seen a camera a few years ago with a mirror on the front and thought it was just dumb until he observed his teen daughter and her friends repeatedly taking self portraits.
It's a self-obsessed, casually narcissistic generation that this Samsung is aimed at, not the likes of you and me. We'd probably just wonder what purchase cost and battery consumption penalties resulted from this "innovation".
To me Samsung would be better off spending their time building up some technical cred by producing some serious cameras along the lines of other second tier brands like Sigma and Ricoh. Or at least improving the cosmetics of their range -- which presently look like crude versions of Nikon, Sony and Lumix models.