Filed under: Portable AudioThey had already been considering it and now it's official -- Napster will be converting its entire downloads catalogue to 100% DRM-free MP3s (innit funny how things come full circle?) in Q2 of this year. With all track and album sales offered exclusively in MP3 format, the company obviously hopes to attract a certain crowd heretofore locked out of its business model. While the subscription service will remain a core focus, Napster execs are surely hoping to see an uptick in their direct download sales w