I am aware that this is posted on the Hunter forums, but it is just as important for Elemental Shamans. Being able to move while throwing Lightning Bolt is the very reason I made an Elemental Shaman as my ranged dps (PvE) choice.
How about focusing on classes such as Hunters and Frost Mages with all their instant spells? At least Shamans has to THROW the spell, which is around 1,5 sec depending on your haste.
I'm not happy with the fact that they want to change Lightning Bolt while running, but at least give us a passive talent that makes us able to do so, and perhaps throw Chain Lightning too (I mean, it's a talent after all).