In one of the testimonials on the site someone mentions having a hot ear from prolonged phone use. This was the main reason I switched to a "tablet" style cell phone, no more phone/bluetooth near my head, speakerphone only.
Im now worried about having a tablet on my lap all the time while reading, ect.. It cannot be good for reproductive/other organs.
I cant see it being a scam. IMO an ounce of prevention is worth a pound of cure, that being said they arent getting any of my $$$.