An anonymous reader writes "CNET reports that SanDisk is courting open source developers to port Rockbox to its popular MP3 players. SanDisk is currently the world's second most popular MP3 player manufacturer after Apple. Rockbox is an open source OS for most major MP3 players. The article also talks about SanDisk's subversive new anti-iPod advertising campaign which calls iPod owners 'iChimps' and uses a 'street graffiti style' to create the illusion of a 'counter-culture uprising against the iPod'. The writer says, 'SanDisk is the first company to market its player as an ideological rather than technological alternative to the iPod. To do so is to fight Apple on their own terms.'"