There's quite a lot of map companies offering similar "SimCity-style" maps:
Edushi (http://edushi.com/), as others have mentioned --- IIRC they were one of the first to market
Baidu rolled out their own offering in 2010 (go to http://maps.baidu.com/, pick a city from the menu on the right, and then click the "三维" button)
City8 (http://city8.com/) don't have 3D maps, but they have a Streetview equivalent which they've been working on since 2008 in Shanghai, Beijing, and other cities: http://en.city8.com/search/search.aspx
Couple of articles which may be interesting reading (in Chinese) --- touching on China-specific privacy, legal/data licensing issues, etc. surrounding these maps:
http://news.xinhuanet.com/internet/2008-03/14/content_778745...