Microsoft announces PlayReady DRM for mobiles

At GSM, Microsoft has announced PlayReady, which is basically a version of its PlaysForSure DRM digital rights management system for mobile phones. (Just what you wanted, right?) Now you can have copy-protected ring-tones! One key "feature" is that users will be able to register a number of devices and transfer their legally-DRMed material -- mainly music and videos -- between them. Of course, this would work perfectly well if you just left the DRM off in the first place....