The yen edged up against the dollar and the euro in Asian trade Tuesday as investors adjusted their positions. The dollar was trading at 81.42 yen in Tokyo morning trade, down from 81.53 yen in New York late Monday. The euro was changing hands at $1.3223 and at 107.58 yen compared with $1.3218 and 107.76 yen. "Although there are risks of a stronger yen coming from position-adjusting after the performances of stock markets in Europe and the United …

Apple on Tuesday unveiled an updated iPhone complete with a built-in "personal assistant" in a move that failed to dazzle investors but promised to keep the smartphones ahead of the pack. Apple shares slipped on Wall Street after the California gadget maker showed off a slick, improved version of the iPhone but not the revamped next-generation iPhone 5 smartphone many had hoped for. Apple's new chief executive Tim Cook, who replaced ailing founder …