Square Watermelon

I always like to buy seeded watermelon because I think they taste better. Maybe there isn't really a difference. Anyway, I wonder what these melons would taste like?
from the blog of Dan Koifman:
"A round watermelon can take up a lot of room in a refrigerator and the usually round fruit often sits awkwardly on refrigerator shelves.
Smart Japanese Farmers have forced their watermelons to grow into a square shape by inserting the melons into square, tempered glass cases while the fruit is still growing on the vine."