Wicked Ass Little 7 Pot (W.A.L.7)
 
I was given seeds of this variety from my friend Neil Tewes, who is a hot pepper afficiando. Little did I know what I was growing! Before I get to the description, let me tell you that this plant produced in Michigan in a really crappy year - that speaks volumes. 

I'm going to copy/paste the description from Bohica Pepper Hut, as there is no sense in reinventing the wheel. If you're looking for seeds, click the link!

"Developed by Butch T it could challenge for the next world record. It was an accidental cross of a 7-Pot Jonah and, most likely, a Trinidad Scorpion Butch T.Butch states that: ..."This is the one that I’ve been holding back! At times it would have the hottest pods I've ever tried (estimated 2- 2.4 SHU) then the next generation drop down to 7 pot heat level. The Mega Hot heat keeps showing up in this variety and may one day be declared the hottest in the world! I have these pods at f-12 stage now and actually feel releasing it will speed up the development of the next world's record!!" "

  Sold in a 2.62" wide x 3.5" deep pot.