Microsoft has released a new service called Windows Live Hotspot Locator for searching wireless hotspots. Currently, the database contains 106,978 paid and free WiFi hotspots across 99 countries. You can set the country and city when searching. China is of course included, with queries available for eight cities/regions: Beijing, Guangdong, Henan, Hubei, Jiangsu, Shanghai, Yunnan, and Zhejiang.