英国看回来的游戏见闻，信不信由你

http://en.wikipedia.org/wiki/PlayStation_Portable#Controversial_advertising_campaigns

Sony admitted in late 2005 to hiring graffiti artists to spray paint advertisements for the PSP in seven major U.S. cities including New York City, Philadelphia, and San Francisco. The mayor of Philadelphia has filed a cease and desist order and may file a criminal complaint. According to Sony, they are paying businesses and building owners for the right to graffiti their walls.