Angry Birds is a great game. It's given me hours of enjoyment on the iPhone. However, when I bought the iPad version I have been very disappointed. First, the HD version was five bucks. Second, the game runs choppy when comparing it to the iPhone version. It's awful. Somehow the app store reviews are great for the iPad version. Are other users not experiencing this or failing to notice this problem? The developer hasn't been of any help. They just tell me that new updates are coming soon. After the most recent update I became fed up after seeing that this problem wasn't fixed. I ended up installing the iPhone version on the iPad and running it at 2X. It's not choppy. The graphics obviously don't look as good running the game this way. Has anyone else noticed this? What a waste of five bucks. I feel ripped off. Is this problem because the iPad doesn't have the Retina display?