If you're into DRM-free music, you have a reason to get pretty excited today. As speculated, Amazon has launched the public beta of its new digital music portal called Amazon MP3, which will feature two million songs from 180,000 artists and 20,000 labels, all without the painful and annoying restrictions of DRM. The press release claims that the site, which will include EMI and Universal tracks (take that, Jobs), will make separate songs available for $.89 or $.99, and boasts that all of the "top 100" tracks will be priced at the former, lower amount. Albums will range in cost from $5.99 to $9.99, with the best selling albums coming in at $8.99. Of course, since there's no DRM, users are free to throw the 256Kbps MP3s on any player they like, as well as burn CDs, copy to MiniDisc, and dump to 8-track.