The Pew Research Center:

The share of adults in the United States who own tablet computers nearly doubled from 10% to 19% between mid-December and early January and the same surge in growth also applied to e-book readers, which also jumped from 10% to 19% over the same time period.The number of Americans owning at least one of these digital reading devices jumped from 18% in December to 29% in January.These findings are striking because they come after a period from mid-2011 into the autumn in which there was not much change in the ownership of tablets and e-book readers.

The introduction and pricing of devices like Amazon’s latest line of Kindles certainly helped spike those numbers but Apple’s Q1 2012 Earnings Call tomorrow will likely show a uptick in iPad sales over the same time frame too.