Launched with 2 million + songs
MP3 tracks are encoded at 256 kbps (iTunes encodes at a lower quality level)
No DRM (digital rights management), play on any phone or mp3 player (iTunes is iPod only)
Tracks and albums cost as little as $.89 and $4.99 respectively (iTunes sells a few DRM-free tracks for $1.29)
Fun. I’ll be checking the big A for my tunes first. Emusic also sells DRM-free stuff, btw.