"Bank of America now has over 3.5 million customers and represents over a third of all U.S. mobile banking customers. They have seen adoption increase significantly since they first went live in the first quarter of 2007. It took them 13 months for the first 1 million customers to adopt mobile banking. The second million took 9 months and the third million took 6 months. This represents an acceleration rate of roughly 30%." - Mustafa Duran from Bookmarklet