When I am reading comments on precentral or some other page that could potentially be long, it'd be nice to have a little scroll bar pop up if you touch the screen to give you rough idea of where in the document you are.

My iPod Touch does this in Mobile safari (booooo apple) and it is the only thing I wish my Pre had when scrolling down thru long webpages.

Does this already exist? Anybody have any ideas on how to make a patch for that? The info for rough location on a page must be available if Safari can do it. I'd appreciate some help. Thanks in advance.