Music in on its way to becoming free, says Michael Arrington on TechCrunch. Sample: artists and labels will stop thinking of digital music as a source of revenue and start thinking about it as a way to market their real products. Users will be encouraged (even paid, as radio stations are today) to download, listen to and share music. Passionate users who download music from the Internet and share it with others will become the most important customers, not targets for ridiculous lawsuits. Can't wait for that to happen. In the meanwhile, you can download In Rainbows here.