An e-mail from my mother:
Today Dad and I were at Føtex, and we saw this fruit, labelled pitahaya from Brazil. Neither of us had ever seen it before, so of course we had to try it. The flesh was soft enough to eat with a spoon, somewhat like a cantaloupe. The taste was tart, but not unpleasantly so. Otherwise there wasn't much flavor. It wasn't bad, but we probably wouldn't buy it again. But look at the appearance: bright pink and green on the outside, tiny black-on-white polkadots on the inside. I felt as if I were eating a piece of pop art!