Apple says it has sold 100 million iPods since the music player's release five and a half years ago.
The number of sales was reached after the introduction of 10 different iPod models, including five generations of the original.
Beginning with the first iPod in 2001, which featured a 5GB miniature hard drive, the player has mutated and grown to offer a top-end storage capacity of 80GB. The US$399 price for the debut 5GB model hasn't been breached; today's 80GB iPod sells for $349.
In its most recent financial quarter, Apple reported that 48 percent of its revenue -- $3.4 billion out of $7.1 billion -- were from iPod sales; in the last three months of 2006, it sold more than 21 million players, up 50 percent over the same quarter the year prior.
Apple's next expected major release, however, won't be an iPod. It will make its first foray into mobile telecommunications with the iPhone, to go on sale in June.