This sounds like a cool idea... in theory. I can see it working if only for the fact that people hate the recording industry so much these days. I know I wouldn't have any intention of installing iTunes just for one free download (I personally can't stand popular music); but if what these guys are purporting to do works, popular music as it's now recognized may change a bit....

"Tune Recycler urges these people to send their winning code to Tune Recycler, which will then use the code to purchase music from independent record labels that are well-known for treating their artists and fans well... if we buy enough copies of a single album, we might be able to move it up the charts-- it's not too hard these days..."