Update 8:06pm I'm reading more and more reports from people whose pets died after DRY Iams food. If you feed your pets any Iams food... well, I wouldn't do it.
This is anecdotal for now...
From the Yahoo Group (listed several posts below) there have been reports from people who spoke with the FDA in both Florida and California. In both cases the FDA representative said that they are receiving reports from pet owners who only feed their pets dry food.
In the California case they fed their cat Dry Iams Lamb and Rice food.