Cory Doctorow, succinctly sums up mobile DRM: "Well, locomotives didn't require horseshoes. You know, the blacksmiths might not have liked the fact that locomotives didn't require horseshoes. But if you started a business to outfit locomotives with special horseshoes in order to keep the blacksmiths happy, you probably wouldn't have lasted very long. Likewise, if you're starting a business to outfit phones with special locks that make it hard to copy things in order to make the music industry happy, then you're probably not long for this world. "