Kad - anything that is a "new technology" that is being distributed by "network marketing" is a sham. If it's any good, it will be in available in shops.
That goes for Noni Juice, fuel saver pills, on-line grocery shopping and Amway.
Here's my tip - if any "friend" asks you to meet with them to discuss something important or a "great opportunity" but won't tell you what it is until you see them, punch them in the face really hard and say "please deposit your pyramid scheme where the sun don't shine."
These people really shit me, but their existence is supported by the ever replenished supply of gullible and greedy people. Furthermore, once these people are involved and see that the product is a joke it is in their self interest to get more people involved to benefit from commission payments. Never ending cycle.