Many US financial institutions are launching mobile banking applications or gearing up to do so. In this Research Note, TowerGroup combines research on the market for mobile banking with its earlier research on the online banking channel and mobile technology to forecast US consumer mobile banking usage from 2007 to 2012. Besides looking at the similarities and differences between the start of mobile banking and the evolution that has occurred in online banking, the report discusses today's mobile environment and the likely impact of mobile banking on other delivery channels.