Angry Birds is best selling mobile game in history. And seems to be era of this legend going to down. And Rovio have plan to release second chapter and thinks that they made much more money and much more fans of saga.
So, according to this blog post, Rovio plans to release Angry Birds 2 on July 30 on both major platforms: iOS and Android.
But we don know any information about game format, level score and even price on it. I think we can see all answers on July 30.
Also the launch official game website were you can find some pictures about upcoming game.