As it was mentioned before, EWB is responsible for the complete
scrolling. Therefore on mobile devices a fast and accelerated scrolling
(wiping more or less fast) is not possible.
This behaviour changes when there is a TBrowser control within the EWB
app. Within the bounds of such a control the mobile browser takes
control over the scrolling.
What I don't understand: if only the viewport is scrolled (not any
control with the EWB app like a ScrollPanel or scrollable form or
surface): why doesn't the browser keep the control over scrolling? Or
IOW: how can a fast scrolling on a mobile device be realized (if possible)?