Pope Benedict XVI posts his first tweet using an iPad tablet after his Wednesday general audience in Paul VI's Hall at the Vatican December 12, 2012. REUTERS/Osservatore Romano (VATICAN - Tags: RELIGION SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS Pope Benedict XVI pushes a button on a tablet at the Vatican, Wednesday, Dec. 12, 2012. In perhaps the most drawn out Twitter launch ever, Pope Benedict XVI pushed the button on a tablet brought to him at the end of his general audience Wednesday. It read: "Dear friends, I am pleased to get in touch with you through Twitter. Thank you for your generous response. I bless all of you from my heart."Later in the day he was to respond to a few ... more Pope Benedict XVI (C) posts his first tweet using an iPad tablet after his Wednesday general audience in Paul VI's Hall at the Vatican December 12, 2012. REUTERS/Osservatore Romano (VATICAN - Tags: RELIGION SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS Pope Benedict XVI posts his first tweet using an iPad tablet after his Wednesday general audience in Paul VI's Hall at the Vatican December 12, 2012. REUTERS/Osservatore Romano (VATICAN - Tags: RELIGION SCIENCE TECHNOLOGY TPX IMAGES OF THE DAY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS Pope Benedict XVI's twitter account is pictured with his first tweet on an iPad tablet in this photo illustration taken in Milan December 12, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: RELIGION SCIENCE TECHNOLOGY) A combination picture shows Pope Benedict XVI posting his first tweet using an iPad tablet after his Wednesday general audience in Paul VI's Hall at the Vatican December 12, 2012. REUTERS/Giampiero Sposito (VATICAN - Tags: RELIGION TPX IMAGES OF THE DAY SCIENCE TECHNOLOGY)