Zune Pass already felt like a pretty sweet deal for music buffs -- $15 per month for unlimited streaming and 10 DRM-free MP3s -- and now Microsoft might be lowering the subscription price even further. Or so says Senior Product Manager Terry Farrell, who added, "it's a very definitely a challenging business." No indication what that new price might be, but just this past April, RealNetwork dropped Rhapsody's monthly fee from $15 to $10. If it does come to fruition, the new price would surely be a welcome boon to an already-promising Windows Phone 7 launch -- and maybe even Kin. Maybe.