Highlights of the 2010 Year in U.S. Mobile

• 5 billion mobile apps downloaded, up from 300 million in 2009
• 5 million Foursquare users, up from 200,000 in 2009
• 347% growth in mobile Twitter usage
• 200 million mobile Facebook users
• 100 million Youtube videos played on mobile devices every day
• 3,339 average number of texts sent per month by U.S. teens
• iPhone become the most popular camera on flickr

2010 facebook Foursquare iphone mobile apps SMS twitter