Angry Birds’ remarkable success has made it an easy target for snide remarks and copycats alike, but it’s been difficult for other creators to successfully mimic its beguilingly appealing formula – and it must be harder still for Rovio to try and exp…

Angry Birds’ remarkable success has made it an easy target for snide remarks and copycats alike, but it’s been difficult for other creators to successfully mimic its beguilingly appealing formula – and it must be harder still for Rovio to try and exp…