Like most fans of SciFi and fantasy, I've watched the teaser trailer; and, like many, I've questioned the logic of this three-bladed lightsaber.
I get that storytellers always want a way to "up the ante" as it were, but at some point fankind really has to cry 'please stop' to whatever powers might be listening. On the plus side, it's only a single film, so let's be thankful for small favors. Still, I have already grown weary with the endless parade of YouTube videos claiming this particular saber is either a good or a bad idea. To me, it's all in the execution -- if it's pulled off believably on film, then I'm always willing to give directors leeway in delivering their respective epics.
However, the above video (I noticed this recently on Geeks Are Sexy) really should bring this particular debate to its close ... that is until the next teaser trailer reveals the four- or five-sided blade that the aged Jedi Master Skywalker now uses.