The other day my wife’s niece who is 2 years old was playing with my brother’s iPAD. What struck me the most apart from her capability to quickly grasp all the multi touch gestures and the use of the Home Button is that if an App did not launch in 2 seconds, she would immediately hit the home button. This is the future generation of users of your Apps & they don’t want to wait for more than 2 seconds to interact with your App.
If you are looking for tips on how to speed up your App, or more importantly make it feel like your App is quick, this deck should help
Here is some more food for thought on the perception of speed