So how will the fight between Google and China affect the world trying to market into the chinese mainland? Personally I think that we have to take the approach that China will continue to filter what its people see according to their laws etc.
If you want to market into China, perhaps you should look more closely at the 'approved' search choices and see what options are available to you there. I would also suggest that you enquire about translation of your site into Chinese to make it readable to the large percentage of the population that doesn't read English.