These benchmarks were done by someone who seems to have no idea about the ins-and-outs of EC2. For example, there's a lot of IO bound tests... but they're on in

These benchmarks were done by someone who seems to have no idea about the ins-and-outs of EC2. For example, there's a lot of IO bound tests... but they're on instance storage. What about Instance storage vs EBS? What about network performance over time? All I can get from these is that Amazon isn't lying that their instance sizes are different in terms of compute units and memory.