I think this is the best thing that ever happened to Bing, not Baidu. Google users in China will not switch to Baidu, they will switch to Bing; they use google because they feel it has more unbiased results coming from a non-govt backed entity. To a chinese google user, Baidu is an ad search engine and a govt lapdog. I wouldn't be surprised if google's market share got snapped up by Bing if they do leave.