Sony's smartphone business has always been seen as on the verge of folding. After a brief period of fame, Sony's flagships have mostly failed to secure a foothold in the market, thanks to a combination of high prices and less impressive features. When Sony sold its VAIO PC business to a Japanese company, it was expected it would do the same with its smartphones soon as well. The good news: Sony President Kazuo Hirai thinks that smartphones are still a viable business. The bad news: it really doesn't care that much anymore.