"If you are an Emacs user who read Joe Brockmeier's Vim tips column on Vim viewports and thought, 'Viewports sound useful; can I use them in a real text editor?' The answer is yes.
"The terminology differs, and there are some slight behavioral distinctions thanks to Emacs's ability to keep multiple files open as separate buffers. But Emacs enables you to work with more than one file in view simultaneously, and even keep the same file open and in sync in several windows..."
