What is Ubuntu One?

Ubuntu One is your personal cloud. It can be used to back up, store and sync your files, as well as share them with other Ubuntu One users.All Ubuntu One features are available to everyone, along with 2 GB of essential storage. If you need more space, choose 50 GB for just $10 a month.

An LWN article writes "Here's an interesting note from Canonical's Elliot Murphy, noting that CouchDB 0.10.0 has been loaded into the nearly-ready "Karmic" release. It seems they have big plans for how they plan to use it: "By the time Ubuntu 9.10 is released on October 29th every single Ubuntu user will have an address book stored in CouchDB that replicates with one.ubuntu.com, and Tomboy notes that are replicated via a web API at the application but then stored in CouchDB and carried along in the CouchDB replication that we have set up. Optionally they can also store all their Firefox bookmarks in CouchDB and have those replicated as well. We'll be doing our best to help teach application developers to use CouchDB in order to 'cloud-enable' their apps."  

Apache CouchDB is a document-oriented database that can be queried and indexed in a MapReduce fashion using JavaScript. CouchDB also offers incremental replication with bi-directional conflict detection and resolution. CouchDB provides a RESTful JSON API than can be accessed from any environment that allows HTTP requests. There are myriad third-party client libraries that make this even easier from your programming language of choice. CouchDB’s built in Web administration console speaks directly to the database using HTTP requests issued from your browser.

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