As I wrote in my last post, the Carolina Reaper rates at 2,200,000 SHU.
That's pretty dang hot, which is why it feels strange to wonder about even hotter peppers.
Nothing is official yet, but I've seen enough information on the Web to at least speculate it could be the Chocolate Bhutlah (CS).
Brief Info on the Chocolate Bhutlah (CS)
This pepper was created by Chad Soleski from Wisconsin. From what I understand, this chile is a cross between the 7 Pod/Pot Douglah and the Bhut Jolokia (Ghost Pepper).
(As a side note, I once tried to eat a 7 Pot Douglah and I couldn't take more than one bite. That's the first time that ever happened.)
Chad gave seeds to his friend, Steve McLaurin, who grew them out and discovered the chocolate-colored pods.
I haven't verified this, but supposedly Ed Currie (creator of the Carolina Reaper) is collaborating on this chile.
The interesting thing is that this pepper hasn't yet taken it's place on the Scoville Scale. Despite this, various pepper reviewers are saying it's one of the hottest chillies they've ever eaten.
Here's An Example:
It will be interesting to see what happens!