Anyone purchased from ElectroDragon.com

MarkG:
How can an opensource project that sells an item and has another company selling an Arduino type product be illegitimate or counterfeit?

Just because you release product as open source it doesn't mean that anyone can use your brand name and your logo and sell them as products manufactured by You.
The boards we are talking about are carrying the Arduino logo and says "Made in Italy" and everything but they are made in China by someone else. The boards claim to be genuine Arduino boards which they aren't.