Last week I hosted Chris Anderson for a Google tech talk on CouchDB as part of the Web Exponents speaker series. Chris is an Apache CouchDB committer. He is co-author of the forthcoming O'Reilly book CouchDB: The Definitive Guide and a director of couch.io. Making web applications work offline is a hot topic. Google Gears blazed the trail, and Web Storage is part of HTML5. CouchDB is a NoSQL alter