I just started fooling w/ it and MIA "Paper Planes" is at the top along w/ the FLOBOTS "handlebars." Are either of these guys indy? Could a Rolling Stones song make it on here? If there is no criteria by which you are too big, won't it degenerate into the top 40?
Are you assuming their intention is to keep the sixtyone.com music community closed to major pop artists? Would that be such a bad thing? How would they then handle an indie act that becomes bigger down the road? Who or how would they measure a band's "popularity"? I think it would be great to see major artists branching out and using different distribution mechanisms. Please, leave it up to me to decide what music I want to listen to, not some third party who decides if a band isn't cool enough anymore for their community or me.