Dave's right. The technology is old.., but Yamaha jumped on the marketing of it. It's been out for some time now. Today it's a bit more polished.., but the technology isn't something new. Like Dave said.., Yamaha decided to use it as a marketing angle. Nothing wrong with that..., as it was a very good business decision for them. However.., their marketing is a little misleading in that they make it appear as if THEY created this NEW technology that really isn't all that new. It's interesting though that with the new models that keep coming out.., how quickly we forget the good things about the previous models. The makers repackage the old technology and we always fall for it as being "groundbreaking" and "new".