Hey there, I have mutual friends with some of the Nasuni folks, and I have a lot of respect for what they do. In particular, Nasuni stores data in a proprietary block format in your S3 bucket, so you can't connect it to existing data sets or use that data directly from S3 out the other side. Whereas with Regatta, we store data in its native format in S3 so you can do these things.

What's cool about the storage market is that there are so many impressive companies because there are so many varied needs from customer applications! We're hoping to become a simple "default" for teams who are writing applications in the cloud.