In Q4 of last year, Facebook's mobile MAUs surpassed desktop for the first time in its history. That trend continued in Q1 2013 with 751M MAUs. This is what we learned with today's release of Facebook's Q1 results.
Despite claims earlier this month, Facebook didn't lose users, but gained 2M. Asia continues to be the largest area of user growth, according to the slides provided by Facebook today.
Mobile users change the scenario. Now a days mobile is become a second option after laptop. Majority of the users are on the go typos, they preferred to use services on the go. Anyways, but that's really interesting to know that Facebook have that much monthly active users.