Despite having only been available for two weeks in the US (and only two days in 25 countries outside the US) before the end of Apple's second fiscal quarter of 2011 (which ended Saturday), Fortune magazine's Philip Elmer-Dewitt rounded up analyst estimates of iPad 2 sales and came up with a minimum estimate of five million units sold, with a mean estimate of 6.02 million and an consensus guess of 6.26 million.
