May I see your evidence of a scam? Hopefully you're not actually trying to claim that concept art is a scam. I think what you meant to say was, "This might be a scam". Because if something is obviously a scam, than you would have some evidence to back up your claims.
Interestingly enough, these links that were posted that some of you are believing to be credible are claiming ButterflyLabs is legit as so many people on here are misusing the word "scam" toward them as well.
The website in question is only a scam when they don't deliver. The problem is, their claims are against the laws of phyics, so you call them liars, and if they're accepting funds in exchange for it, you can safely assume they are defacto scammers until proven otherwise.
That said, there is absolutely no chance of getting users of this forum to learn English and use the words "cheat", "lie", "steal", "deceive", "fail" or "mislead". They just love making up definitions so much and bundling them all into words that don't fit so that it gives a better impact for their libel campaigns. Oh the joys of anonymity.
"KFC is a SCAM because they forgot my chicken wing!"