This'll be interesting:
New peripherals for Guitar Hero // Eurogamer
Guitar Hero is apparently getting new instruments like drums and vocals, making it an identical rival to rock band, I'm curious to see whether Activision take note of what happened here and price the whole lot for GH4 at £120 mark, and if EA will react and start to compete. It seems they had to be a little more competitive in the US since GH3 had only just been released but over here they will be nothing similar either side of release for 4 months.