In emacs, are there any packages available for displaying vertical lines at every tab stop, or at pre-defined column positions. If possible, I'd like to have multiple thin vertical lines that are for display only without having any effect on the code being written in the buffer. I'd like something similar to what Sublime Text 2 offers out of the box.
EDIT (December 30, 2013): Alp Aker has this feature request on his road map https://github.com/alpaker/Fill-Column-Indicator This would definately be worth keeping an eye on for the future.
EDIT (May 1, 2014): The code for this implementation / modification of
fill-column-indicator.el is set forth in this related thread: http://stackoverflow.com/a/23418459/2112489