Quite seasonal, but not as short as bayberries, which I miss most years. I think they(atemoya)'re also a new fad/hybrid thing, as last year was the first time I saw them. ^^

Heh, supermarkets, markets, regular fruit stalls in open air malls, anywhere. A lot of exotic fruits come out at different times of the year. (no problem, no more bother than an lj comment, wot?) ;)