By comparison, it took Apple more than 70 days to sell 1 million iPhones after the initial launch.
Brainstorm Tech writes:
In a report to clients issued Saturday night, Munster’s estimated that by midnight Sunday, Apple will have sold 600,000 to 700,000 iPads, including pre-orders — more than double his relatively conservative pre-launch estimate of 200,000 to 300,000. (Other analysts had published estimates of 300,000 to 400,000.)
…It took Apple 74 days to sell its first million units of the original iPhone, and three days each to sell a million units of the iPhone 3G and the iPhone 3Gs.
The estimates were made after Munster’s team put in calls to Apple stores around the country, although it’s worth questioning how accurate that method might be.