Unfortunately, although Ice Cream Fruit will grow 'elsewhere' - they will not grow everywhere. U.S.D.A hardiness zones 10 and 11 are best - they can be grown in zone 9 with a lot of effort.
I tried some a few years back in California, they were aewsome, and I was sadly disappointed when I found there were none to be had back on the East Coast. They do taste something like ice cream - custard would be a better description.
When fully ripe they are euphorically sweet with a melding of tropical fruit flavors performing a ballet on your taste buds -coconut, papaya, mango, pineapple and banana are some of the diverse descriptions assigned to it. The tropically flavored cocktail combined with the smooth custardy texture is what led Mark Twain to describe them as "the most delicious fruit known to man".
Although Cherimoya made its rounds in the USA back in Mark Twains day, it never caught on as it is not really commercially viable. It's skin is too soft to be shipped and stored for extensive periods, it has a short shelf life and commercial propagation and harvesting the fruits can be costly. At Present, they are gaining some popularity in California and on the West Coast.