I haven't talked to the vet about it yet -- he'd already gone home for the day when I came to pick Dizzy up from his surgery, but I imagine we'll do that when I bring Dizzy in to have his stitches out Saturday morning. But the pamplet I was sent home with noted that an FIV+ cat can be asymptomatic for ten years -- and that's getting towards a reasonable lifetime for a cat, since he's already two and a half.