The review pointed out the shortcomings of the first generation iPod. It isn't a review of the entire iPod line that would follow in the future. The first generation was only compatible with OS 9 and OS X, had 5G or 10G of storage, was in black and white and had a mechanical click wheel. Apple sold 236,000 in three fiscal quarters before they released the next generation. Meanwhile Nokia was selling an order of magnitude more 3310s, another portable electronic device (cell phone), every quarter. The iPod became the best music player on the market because Apple kept improving it.