Can NOT resist.  Myspace.cn has just opened up and you must take a look if you haven't already.  It's almost worth creating a MySpace page.

The front page shows 3 mainland Chinese users and 3 international users, and they can all friend each other.  How do they choose who gets on the page as international users?  Unclear.  But Tom is every Chinese MySpace user's first friend, as usual.  Seems like there might not be that many Chinese users...or maybe not that many writing in English.  Unclear.

Maybe Chinese users will pick up on it in order to meet people from other places; or maybe there will be a Chinese-language only group that doesn't interact at all with people outside China. If the numbers pick up in China, this could skew most popular blogs, videos, and so on on MySpace. Hard to say what will happen. Some thoughts about what could be:

• MySpace users outside China get to expand their friends list by...exponentially.  Expect contests for most friends to move to the next level.
• Chinese MySpace users get to make friends with some really different kinds of people than they've met before, like Barbie Gangsta Bitch, for instance, in the US.  They'll talk in English mostly.
  
• Non-Chinese MySpace users get exposed to a wide variety of Chinese people: from serious as in DIck, 24, in Chongqing who wants to meet "the president of every country the famous economists" to sassy like Kiki Lee, 24, in Shanghai. Chance to practice Chinese for all those kids in the US now studying Mandarin; chance to meet Chinese people before your next trip to China.
• Chinese pages are for the most part uncustomized at the moment, but that will no doubt change.  Everybody gets to see what the others like, listen to, and think is funny.  Perhaps some trading and remixing might go on, new fads, new widgets, etc.. 
• Indie music outside of China gets exposed to the Chinese market; and vice versa.  Possibilities there.