Out of curiosity, when you guys say "pinyin," do you mean Hanyu Pinyin, like they use in China (e.g. Mao Zedong)? Or one of the alternative systems (e.g. Mao Tze-tung)?
One poster said they want to restrict romanizations, perhaps to a single system, but another got away with using a Japanese-derived romanization. Does it perhaps vary by office?
And is there any limit on the number of roman characters that the system can accommodate?