Writing in PCWorld, Martyn Williams, of IDG News Service, recounts how SK Telecom is using DRM as a competitive weapon, some would say as an anti-competition weapon. Snippets:
SK Telecom is using its own digital rights management system to protect downloaded music. Music loaded onto its phones won't play anywhere else--not in handsets from other carriers or in stand-alone digital music players. SK Telecom's handsets also won't play songs protected with other DRM systems, so you can forget about using Apple ITunes Music Store or any other portal to acquire music for your handset. Of course, the same incompatibility exists in the music player world between, say, Apple's IPod and Napster's subscription music service. The situation isn't new, but the entrance of cellular carriers could make it more confusing.