Comment Caringo is close... (Score 1) 669
Recently I've been working with a storage cluster technology from Caringo called CAStor. This is ofcourse for larger deployments and similar to Amazon S3. Main difference is that you can buy your own hardware and run in your own basement. Their long-term strategy is to run their proprietary software on top of commodity hardware. As long as they are around you can always upgrade your iron to the latest commodity and upgrade the storage cluster every 3-5 years. Your data is available via HTTP/1.1. The standard "www" protocol of the Intertubes will ofcourse change over time, but CAStor will adapt or you can pull your data out and move it to whatever "eternal" platform you might find in 10-15 years.