The Vatican recently celebrated the 43rd World Communications Day (May 24th) by launching a new website entitled Pope to You. The site uses iPhone, Face Book, wiki, and YouTube applications to spread the Gospel to young people and other techies.
I recently downloaded the iPhone application called H20News from iTunes. The application allows you to view Vatican news in three different formats - audio, text and video - and eight different languages.
The site has promise in reaching young people who use such technologies on a regular basis.