Forbes has published a list of the 40 wealthiest people in Japan and guess who is sitting pretty at the top of the pile? None other than former Nintendo chairman Hiroshi Yamauchi whose net worth soared US$3 billion in the past year for a total of US$7.8 billion. The ex-Pres is no doubt sitting on the top of the heap thanks to a huge windfall on the back of the success of the Wii and Nintendo DS. More inside ...