The ComScore DataMine site features this graph depicting the growth of iPad ownership across income categories in the United States. And these numbers are before the iPad III goes on sale.
Last week at the National Association of Independent Schools (NAIS) conference, I attended quite a few iPad in education events. Here’s a January 2012 New York Times article, Math that Moves: Schools Embrace the iPad.
Also check out the March 5, 2012 New York Times piece, As New iPad Debut Nears, Some See Decline of PCs.