Update: After three years this project is coming back, The new maintainer is working on bringing the plugin up to date.
Last Cursor Position is a package for Atom that keeps a history of past cursor positions and allows to travel Between them.
alt--to travel to previous cursor position
alt-_to undo previous travel
alt-Rwill clear all previous cursor positions in all tabs and windows
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.