#1 on the list is some app called Mob wars which according to this study has potential of $22,000+ daily. Crazy.

 DeveloperAnalytics, a research firm which analyzes Facebook applications, put out an appealing bit of linkbait this morning that purports to show how much money popular applications could earn each month. It calculates the metric based on "hundreds of real CPM...

http://valleywag.com/5041943/how-much-money-can-facebook-apps-actually-make