While I haven't personally seen it in action (it will be fully phased in by the end of March), RCI's Aqua Babies and Aqua Tots programs -- developed in conjunction w/Fischer-Price -- sound really great. I have some details in a separate article called "Wha'ts New in Family Cruise, Nov. 2004." Go to the main family cruising page and scroll down until you see the above article title.
Luisa Frey Gaynor
Family Cruise Editor