This Saturday, it’s back to Cannes for the annual music industry conference. This year, Midem and MidemNet hear from the likes of YouTube co-founder Chad Hurley, Bebo international president Joanna Shields, Yahoo (NSDQ: YHOO) Music GM Ian Rogers and We7 CEO Steve Purdham at a critical time for the industry. Having begun to drop DRM last year, how successful is unlocked music proving? How is EMI’s restructuring going down and what are record labels evolving in to? And where does mobile music go after ringtones? I’ll be in town over Saturday, Sunday and Monday, trying to gauge some of those views. And here’s our coverage from last year…