It's like the diver and the sign. It maybe means that they're looking for a fish (or for the diver).

Ok, thanks. It's good that they're only looking for "a" fish, and not that one... I think they'd have to sync over to my Palm to buy that one.

Though it does sort of look like the Snout in the PC version. Sort of... sideways.

Edit; ...I'm such a dork! I just looked at my fish in the PC version and the Fruitfish looks JUST like the one in the Palm version. lol! I should know these fish inside out by now...(ew! that made me think of sushi)