I actually had some of this when we went on a mission trip to Bangkok! We were always advised to eat fruit that had to be peeled in our presence to help guard against picking up a goolie in the country.
The locals highly recommended this and it was delicious. I could have eaten nothing but this the whole time. I'm used to heat and high humidity, but Southeast Asia is a whole different animal. All I wanted to do was eat fruit and drink water. We tended to eat breakfast very early in the morning, and I ate fruit the rest of the day. We found some shaved ice stalls that used purified water to make the ice, and they had cempedak ices. They were absolutely wonderful! It's an awesome fruit!