Here's some intersting facts from Newsweek about english being spoken in China.
$1:
Next door, mighty China itself seems to have caught the English bug. Beijing guesses that more than 40 million non-native speakers now study Mandarin worldwide. But that pales next to the number of those learning English. In China alone, some 175 million people are now studying English in the formal education system. And an estimated 2 billion people will be studying it by 2010, according to a British Council report last year. "The impression is that 'Mandarin fever' is rampant and spreading, but a close look shows this is an exaggeration," says Stephen Krashen, a second-language-acquisition expert at the University of Southern California. "The dominance of English as an international language is growing."
Link:http://www.newsweek.com/2007/08/15/english-for-everyone.html
So, if we're spending the Chinese Governments hard earned money to learn Mandarin and English is going to be the language of choice, even for the Chinese, the question becomes why, or maybe it should be, what's the ulterior motive?