Sales numbers on the iPhone 4

Apple announced this morning that they have sold 1.7 million units of the iPhone 4 in the first three days.  That compares to 1 million units in the first three days of launch for the 3G and 3GS.  The original version of the iPhone took 74 days to sell one million units.  The numbers below show sales estimates from the Gartner Group in 2005 (based on millions of units).