[MrNibbles]

Its easy to detect these features, ideally one would only load this lib if the features are supported.

The -webkit-transform: translate3d(0,x,y) (3D, not 2D transforms) property forces the element to be hardware accelerated under mobile safari, without this, the redraw would be around 10 times slower. This is the whole point of the library (hacking around a known issue in mobile safari)

Besides, he states that the code requires iOS. It is not a mistake to include vendor specific code in this way when targeting a specific platform for optimisation.