The most popular browser in China is IE6. You know why? Because it runs on pirated XP best.

The internet cafes in China are not going to run Linux anytime soon.

Why?

Because the cafe users are gamers, mostly. They use the *cheap* internet connection to play one of tons of different windows only MMORPGs(And that includes World of Warcraft.) or Online shooters.(Used to be counterstrike.)

To ask those internet cafes to run Linux is to ask them to get rid of their source of profits.