Actually, several months back, I posted about the surprise yellow jolokia plants that I had coming up (not sure exactly where the thread is now) in the midst of my other jolokias... and nothing was remotely close for them to have cross-pollinated to produce a hybrid. I had picked up the seeds originally almost 2 years ago from India (i forget exactly where) and the "yellow seeds" came directly from that pack of seeds.
I posted pics and even sent an inquery about them to the Chili pepper Institute (without a responce from them which was very disappointing).
The peppers size, smell and taste were about the same as the "red" jolokias... they just looked cool.
I've got them dried now, and had promised pepperman a few, so will be sending some to him soon.