Amazon starts dishing out DRM-free Warner Music MP3s

We're not sure if Amazon's forthcoming DRM-less Super Bowl promotion has anything to do with it or not, but the company has just announced that its finally brought Warner Music Group into its MP3 fold, with a slew of music from the label now available for download without any of those pesky restrictions. According to Dow Jones, the pair also plan to offer other "digital music products," including album bundles with exclusive tracks, although details are few and far between beyond that. Still no word from Sony BMG on its intentions to go DRM-free (with Amazon or anyone else), but it sure looks like things are increasingly stacking up against them.