Activision has decided to pull out of this year's E3 citing “after careful consideration, for business reasons Activision has decided not to participate in any official E3 activities. We wish the ESA best of luck with the show.” No doubt this wil come as a major blow to E3 who was betting on Activision to be there after riding a wave of success on the backs of Guitar Hero 3 and Call of Duty 4.