Filed under: Portable AudioSony BMG boss, Rolf Schmidt-Holtz, was just quoted in an interview saying that Sony BMG is "working on an online music subscription service." The service would cost between €6 to €8 per month (about $9 to $12) when launching later in the year and provide full access to its entire music catalog. He goes on to say that customers could own "some songs" even after the subscription was canceled. Interesting on it's own, right? Now the kicker: it will work "for all digital players, including Apple's iPod." That means DRM-free unless Apple agrees to license its FairPlay DRM whi