Pope Benedict XVI tweets in Latin at https://twitter.com/Pontifex_ln

His main twitter account in English is at https://twitter.com/Pontifex

In total Pope Benedict XVI tweets simultaneously in nine languages :

French : https://twitter.com/Pontifex_fr

Arabic : https://twitter.com/Pontifex_ar

Italian : https://twitter.com/Pontifex_it

Polish : https://twitter.com/Pontifex_pl

Portuguese : https://twitter.com/Pontifex_pt

Spanish : https://twitter.com/Pontifex_es

I hope Pope Benedict XVI will soon tweet in Chinese and Tagalog as well! God bless our Pope and the Universal Church!