I absolutely agree that it made sense for them to make a hybrid, but given that they presumably will only make a single device, how many of them would they need to sell in order to validate the decision? If they outsell the PS4, that's great, but how many home console + handhelds would they have sold had they continued down the separate devices route? Obviously it's hard to say, as we don't fully know how the mobile market would affect the handheld today, but even if both Home Console and Handheld underperformed, mightn't they have hit more than 32 million together? Who knows!