/* Tested and working */
-webkit-transform: translate3d(0,0,0);

/* Tested and not working, but has been reported working for others */
-webkit-perspective: 0;

http://fatfolderdesign.com/478/css/mobile-safari-webkit-flicking-animation-fix

Ever notice a weird CS3 animation flicker? Annoying right? Add these CSS3 classes to the objects being animated and it should go away (at least it has in my testing). More details at the link, questions can be postsed either here or there.

Fix Webkit CSS3 animation flickers

animation, CSS3

CSS