http://www.telegraph.co.uk/foodanddrink/foodanddrinknews/9701412/Non-melting-chocolate-invented-by-Cadburys.html



According to this article, Cadbury just invented a new way of producing chocolate that will enable it to not melt even in 40˚C for 3 hours.  This can be a threat to Hershey's because of an advancement in technology that lends itself to Cadbury's favor!