Pope Benedict XVI decided to join twitter a short time ago with a myriad of handles that all shared the stem @Pontifex and a short code for the language at the end. For example, there's @Pontifex_es for Spanish and @Pontifex_fr for French. However, a surprisingly popular one is @Pontifex_Ln for Latin!
Pope Benedict didn't just pass the title and office to the new Pope Francis, but also his twitter accounts. The Latin one is amusing because, at more than 115,000 followers, it's got more followers than his Polish, German and Arabic accounts.
If you have trouble fitting your thoughts onto a tweet, you should consider picking up Latin. The language is very succinct and you can fit a lot more of your thoughts in a lot less characters!