Using the example you provided in app.js, there are a few odd things that happen if you use the ELASTIC and BOUNCE easing functions. ELASTIC seems to be sporadic and BOUNCE doesn't animate the size and position parameters properly. After the duration of the animation is reached, the view just snaps to the new top position or height for example. I'm running on 3.5.1.GA and have only looked at iPhone 5s in the simulator. Are you seeing this result as well?
Using the example you provided in app.js, there are a few odd things that happen if you use the ELASTIC and BOUNCE easing functions. ELASTIC seems to be sporadic and BOUNCE doesn't animate the size and position parameters properly. After the duration of the animation is reached, the view just snaps to the new top position or height for example. I'm running on 3.5.1.GA and have only looked at iPhone 5s in the simulator. Are you seeing this result as well?