Wayne insists it is a cherimoya, and swears it came from a cherimoya seed. You know what else came from a cherimoya seed? Damn near every other atemoya known to man; the seed parent is only half the story.
IF the Dream is a cherimoya, it has some awfully pointy leaves relative to just about all other cherimoya out there.
That said, it is closer to a cherimoya in terms of taste than any other atemoya I've had, and it grows and fruits well here in FL. Totally worth growing IMHO, and definitely better than Gefner.
I'll be grafting a dozen or two Dream in the spring, and plan on having them available for sale as soon as they're healed up.