Contrary to several reports that appeared in the media late last year, Apple continues to enjoy strong iTunes sales and year-over-year growth, selling one billion songs in 2006.

"There was an article recently that said iTunes sales have slowed dramatically. I don't know what data they're looking at," said Apple chief executive Steve Jobs at Macworld Expo. "What we see is that iTunes sales were really up this year. We doubled the number of songs we sold in 2006. We are selling more than five million songs a day. Isn't that unbelievable? That's 58 songs every second."

Jobs went on to note that Apple has now surpassed Amazon to become the fourth-largest music retailer in the US.

Apple also announced that more than 50 million television episodes and 1.3 million feature-length films have been purchased and downloaded from the iTunes Store.