Make no mistake, Amazon MP3 is going to be huge. DRM-free, and can work with any MP3 player.

Apple really needs to stop being such a closed shop, or they’re going to get left behind. Once upon a time, they were the only serious contender for downloads, but music downloads that are cheaper and even more portable have got to send some sort of wake-up call that they’re not the only game in town.

(Yes, I know eMusic has been doing this for some time, but there’s no way they would amass the catalog that Amazon can.)