I love China, there seemed to be guards/police along the whole length of the Nanjing street all the way to the Bund....in Shanghai. I walked alone at 4am to catch the sunrise in the early spring....similarly in Beijing, i explored the Wang Fujing areas into the back alleys....in the early mornings.....and late at night....some shots can be seen at my pbase gallery:
http://www.pbase.com/dannytoh/beijing&page=all
...what one should be more careful would be pick pockets, not outright confrontational kind of muggers.....seemed like the police there get real tough on such criminals if they try to touch the tourists.....think the upcoming Olympics has something to do with their desire to make China Tourist-safe...bring
Will be going to Kunming mid-Jan......my gears would be my main luggage.....just my view for others who are planning trips to China.