Children, we've arrived at Oz, The Emerald City!! It's called AWS "High I/O EC2 Instance", with unspecified SSD provisions. Woo Hoo. Based on the numbers, Fusion-io/Violin/STEC are the most likely guesses. OTOH, Amazon could well have gone the Google/Sun route of building "SSD" as bespoke flash appliance. Either way, vindication.
In particular, follow the Vogels' link: his notion of "eventual consistency" might, just might, be in "nevermind" land. That would be a Good Thing.