newton running shoes...awesome!

First heard about this shoe from the triathlon community, and it comes highly recommended.  First video explains the technology behind the newton shoes.  The idea is to mimic a fore-foot, mid-foot strike as you would in barefeet.  Second video is either a spoof or simply a bad contribution from expertvillage.  Sure, an all out toe strike isn't recommended, but why go to the other extreme with a heal strike?