Masayoshi Son is the kingmaker of the Asian Internet. His latest coronation: Xiaonei, a Chinese social network whose name translates to "on campus" and whose look and feel closely mirrors Facebook's. Son's Softbank and other investors have put $430 million into Xiaonei's parent, Oak Pacific Interactive, in a deal which values OPI at more than $1 billion. This has to worry executives at Facebook, which has raised less money — albeit while selling far less of the company to investors than Xiaonei has.