Investors cheer Nintendo move to smartphones

Shares in Japanese video game maker Nintendo Co on Wednesday notched their biggest daily gain since listing as investors cheered the decision by the creators of Super Mario to venture into smartphones in a bid to retain users. The stock ended limit-up, or 21 percent, at 17,080 yen (96 pounds), a day after Nintendo said it would develop mobile gaming apps with online gaming firm DeNA Co. It was the stock's biggest daily gain since Nintendo became public in 1983, adding some $4 billion to the