Yesterday, Playfish released "Nannybots," that will feed, clean and play with your pet 24 hours a day. Nannybots are sold at the Gadget and Furniture Shops for 400 coins. Playfish has thrown in a free battery good for the first three days, but if you want to recharge it, you have to fork over some real money--5 Playfish coins.
My pet Sushi got a chance to meet the Nannybot during a visit to a friend. The scene above, which looks like he's being hit with a toaster, actually raises his health level.