The only problem with the updated Angry Birds game is Rovio needs permission for your SMS messages.
Now you may ask yourself why on earth the company needs access to your SMS, it's strange at the very least. Many have actually stayed away from updated app because no-one is sure why a mobile company want access to your messages; there are many wanting a brief explanation as to why exactly permission is needed to get the download.
If you are a little unsure then get to know what other people think from those who have already used this app and see if there truly is a risk to your privacy.