The 'SOLUTION' seems to be not abusing css3 'transform'. In my case i was using flexslider with custom extra css navigation elements with opacity and hover animations like the < > flexslider arrows. This extra elements where causing too much work for the retina iPad gpu (apple bad design?) so i set some elements static, always visible plus no opacity, no animation,. even simplified removing some elements. This prevented ipad crashing much less than before. Still not 100% solved, but as I said, the problem seems to be a weak graphics card for a retina display like the iPad uses.
Also it seems to be some of the CSS involved that iOs doesn't like...
.flexslider .slides > li {
display: none;
-webkit-backface-visibility: hidden;
}
Check this out:
https://github.com/woothemes/FlexSlider/issues/727
The problem seems to be an incorrect implementation of the CSS3 transform property in iPad and mobile retina devices/bad apple hardware design.
This css property seems to consume lot of memory:
iOS Safari runs out of memory with "-webkit-transform"