"The iPod's market share has fallen slightly, down from its peak of 92% to 87.3%, according to new research from market research company NPD Group. According to the report, which covers sales over September, Apple's player lost share to both cheaper, flash memory-based players and HP's version of the iPod. In the hard drive-based sector, Apple sold 87.3% of the total units shipped, while HP's iPod took 3.6% of the market, making it the number two selling product over the month. In third place came Rio, with 2.8%."
http://www.extremeipod.com/article2/0,1759,1711755 ,00.asp