On the MS Surface it can be a little annoying when I accidentally scroll the page slightly with my hand while writing/drawing... There should be options so that either the page snaps back to the window unless scrolled past a certain threshold, or--better yet--simply don't change the page at all unless scrolled past a threshold...so that it's more of a page flip than scrolling a webpage. (That would seem more consistent with the whole notebook metaphor you're going for anyway.)