It took the iPod 17 quarters to reach 30 million units. The iPhone did it in 10.
Thanks to AAPLinvestors’ Terry Gregory for gathering the data from Apple’s (AAPL) quarterly reports. You can see his spreadsheet here.
Below the fold: A version of the chart that extends the iPod numbers to the end of fiscal 2009.
UPDATE: Also, per reader request, a chart showing sales per quarter for the first 20 quarters.
[Follow Philip Elmer-DeWitt on Twitter @philiped]