Nintendo's hardware sales may be in a bit of a stupor, but its downloadable games are a different story. During today's financial results briefing, the company's president, Satoru Iwata, announced that digital sales for the 2013 fiscal year, which ended in March, cruised past ¥16 billion (around $160.9 million), more than doubling transactions from the last two years. Nintendo's frontman went on to credit the demand for downloadable game a