Looks interesting, but S3 gives me both eventual or read after write consistency, as well as 11 9s of durability. Why would I use this instead?
For example, if you're a defense contractor that handles FOUO information, you can't just throw that on somebody else's cloud. You have to keep it entirely in-house.
If it came down to it, you can lease dx lines from AWS to your datacenter switch and get 10 Gbs to S3 for pretty cheap.