Dynamo is not an alternative to S3, Amazon’s publicly-available data storage service, or competing Web hosting/storage services like Nirvanix and Flexiscale (see previous post). There are no plans at this point to offer Dynamo as a Web Service. It is an internal-only project that sounds like a rethinking of what a relational database should be when computing scales to massive Web proportions (i.e., systems running on tens of thousands of computers).

As Nick Carr puts it:

At the start of the last century, the great engineering project was the creation of an electric grid that could deliver power to millions of users with a reliability and an efficiency that were previously unthinkable. Today’s great engineering project, of which Amazon’s Dynamo is but one manifestation, is to build a computing grid that can achieve similar breakthroughs in the processing and delivery of information.

The race to create a Web operating system is heating up. It is such a huge undertaking that there are only a few companies—Amazon, Google, Microsoft, Yahoo, IBM— that can tackle it. But this time around, it is unlikely that any one of them is going to own it outright.

See our recent coverage of Nirvanix, a U.S. based S3 competitor as well.