A BBC report out of Cambridge University about a successful desensitization trial is potentially promising: “A group of children with peanut allergy no longer have to worry about severe immune reactions after taking part in the world’s first successful peanut desensitization program. The research, carried out at Addenbrooke’s Hospital in Cambridge, involved the patients eating daily doses of peanut flour.” It's early days in this kind of work so we shall have to see.
UPDATE: I knew this story looked familiar and not like new-news. This was confirmed by an email from an allergist buddy who says: "What these studies do not overtly publicize is that most, if not all, of these kids repeatedly reacted at lower doses, so there is some question of safety (though all eventually tolerated the dose escalation)...Similar data exists for milk and egg as well--can increase threshold to exposure, but not a cure to allow at will ingestion. Maybe one day we will get there, but we are not even close right now."
So no "at-will" experiments over the weekend, please.