Re:~~~100 million~~~ (Score 3, Interesting)

From Apple's SEC filings (21 links are listed at Wikipedia):

Calendar quarter - iPod sales

Q4 01: 130,000
Q1 02: 57,000
Q2 02: 54,000
Q3 02: 140,000
Q4 02: 219,000
Q1 03: 80,000
Q2 03: 304,000
Q3 03: 336,000
Q4 03: 733,000
Q1 04: 807,000
Q2 04: 860,000
Q3 04: 2,016,000
Q4 04: 4,580,000
Q1 05: 5,311,000
Q2 05: 6,155,000
Q3 05: 6,451,000
Q4 05: 14,043,000
Q1 06: 8,526,000
Q2 06: 8,111,000
Q3 06: 8,729,000
Q4 06: 21,066,000

Cumulative sales as of last December: 88,708,000 (for a total revenue exceeding $17.36 billion). Thus this quarter Apple sold approx. 12,000,000 iPods.

Some of these iPods were stolen, some broke and were replaced, some people own more than one, but all in all Apple has sold 100 million iPods. Most of them are in use because the vast majority, more than 90 million units, have been sold since January 2005.