Assume you are Nintendo, and you are playing a game of poker with Sony and Microsoft. You've got your hand, which is unknown to your opponents. When asked the question before the round is over if you have a winning hand, do you make any acknowledgement about it with a yes or no, or simply sit there, dodging the question and/or giving a "poker face"? By revealing your hand early, it gives your opponents something to work with, whether for their own benefit, your demise, or both. By not revealing your hand early, your opponents have nothing to work with, and have to guess. The chips are on the table. Would you waste any by giving your opponents an advantage?