Well, I inspected the tree closely and there are now three fruit hiding in the fairly dense canopy. Unfortunately I'm plagued with all sorts of tree rats (possum, squirrels, raccoons and occasionally rats) so in an attempt to thwart their destructive nibbling, I bagged all three fruits with nylon bags. I'm thinking I may double bag them.
At this point they're a bit larger than the size of a hardball, growing fast and aside from color change I have no idea when to pick them so I'll be up in the ladder checking them frequently :-)
I wonder if many growers in So. Flo have success with rollinia here? I wonder because there's not a whole lot of online chatter about them.
Anyway, thanks Roblack, your assessment was spot on.