An interview we did with <a href="https://twitter.com/lancecarlson" rel="nofollow">https://twitter.com/lancecarlson</a> and <a href="https://twitter.com/ebzovi" rel="nofollow">https://twitter.com/ebzovi</a> on rewriting their ruby app to use Cloudant's JSON doc store service. Flexible schema, and user permissioning implemented as a CouchApp.<p>(I work for Cloudant.)