
In Japan, stocks involving Mixi, the hottest social network on the island, and Softbank tumbled with the announcement:
Shares of Mixi Inc., Japan's most popular online social network site, tumbled 10 percent to 2.07 million yen by the midday break due to investor concerns about a new competitor.
Softbank's shares fell 1.84 percent to 2,395 yen, while the benchmark Nikkei average was down 0.7 percent.
Softbank's internet arm, Yahoo Japan, has a competing service.



