Magnet Blocks

On account of the upcoming lodestone changes it seemed fitting for me to weigh in here I made a mod in beta 1.7.3 that explores this concept, magnets would be attracted or repelled by current running through copper blocks (instead of the iron in my mod) and can push 8 Blocks in any direction sharing the same list of immovable blocks as pistons. Primary purpose of this Redstone component is to improve linear actuation of blocks by making it faster and smoother to move things in straight lines over long distances.