Huang Xiaohu, a 32-year-old Chinese man trained himself to write 10 numerals simultaneously using 10 fingers.
Huang Xiaohu told to Beijing Times he acquired the special ability through countless practices. "I want to prove myself by doing something that others can't do," he said.
"I have no special talent. I did it entirely by practicing."
http://www.sortchina.com/dedecms/html/Live/2007/0416/5197.html - via Spluch