List of known “Safari on iPad” differences over “Desktop Safari”

Question

In recently testing a web application on Windows/Mac desktop browsers - and then on an iPad I noticed various differences in Safari that I wasn\'t expecting. even though the

Answer 1

24 bit transparent PNGS ABOVE A CERTAIN FILE SIZE don't render on the iPad2.
I can however get 8 bit ones of the same dimensions to render.
I haven't found out what this maximum file size is in order to get them to render.