His fourth point, that any good Facebook apps will be killed by the traffic, is a pretty interesting one. In one sense, Facebook Platform lowers the barrier to entry for developers by making it insanely easy to spread the word about a new application, but it's so successful at doing so that you have to have enough physical infrastructure to handle that load. This seems like a perfect use case for Amazon's EC2 and S3, but as he notes, iLike wasn't able to use them to solve all of their traffic problems. Does anyone know of any particular problems inherent in the way Facebook Platform and Amazon's services are set up that makes it difficult to use them together?