With 55 million iPads sold through December 2011, and an estimated 5.5 million Amazon Kindle Fires sold in their first quarter on the market, tablets have gained unstoppable momentum. Forrester forecasts that tablets will reach 112.5 million US consumers — one-third of the US adult population — by 2016. In this report, we discuss the assumptions behind our updated US consumer tablet forecast and their implications for product strategists.