“So much for it being a niche product! Apple says it has sold two million iPads in 60 days since the launch of the tablet device. It sold the first million iPads in 28 days. It is hard to find some of the 3G enabled iPads in their retail stores. The pace of iPad sales is way ahead of the early results for iPhone, which took 74 days to sell the first million. According to some estimates, iPad is outselling the Mac itself.”
— GigaOm: Apple Selling Million iPads a Month.