© 2011 ` ` Angry Birds '' is similar to Facebook . ` ` The Facebook pages have a more prominent role , '' Rovio CEO says . If you ` ` Like '' the Facebook page , Rovio will keep you informed about the migration .
` ` Angry Birds '' is similar to Facebook . ` ` The Facebook pages have a more prominent role , '' Rovio CEO says . If you ` ` Like '' the Facebook page , Rovio will keep you informed about the migration .