Yinnan Li, Baidu's CTO, has left to become the CEO of
Beijing Wuxian Xunqi, operator of China Mobile's
12580 information service. The Wall Street Journal
believes this is related to the Phoenix Nest transition, while
some Chinese blogs think the resignation was caused by
Baidu's website going down for a few hours recently.
A promotion he could not possibly hope for at Baidu seems
the strongest reason. Note that Wuxian Xunqi is expected
to IPO this year or the next.