[tikhonj]

Emacs does this, and so does Vim (I think). The main difference, I suspect, is that people who use Emacs and the like don't use their scroll-bars nearly as often as using a keyboard to get around; people using some of the other text editors, on the other hand, probably navigate with the mouse more. I think the behavior proposed here is oriented towards the former more than the latter, which would also explain the different behavior in text editors.

[jdpage]

IIRC, Visual Studio does it too in some cases. You can't scroll past the end of the code, but if you jump to a point in the code, it will always put it at the top of the screen, and provide an overscroll area if necessary.