looks like about 4K per record (minimum), and compacting removes all old versions
"CouchDB is specifically intended to run in the client, and to provide a form of location transparency where your entire application can be running locally or remotely and you really don't know the difference except that perhaps some of your data is stale until you reconnect to the server."
Unfortunately you can't connect to it via XHR (JS in a browser) so we need an intermediate Ruby server to add the "Access-Control-Allow-Origin" header. See bug https://issues.apache.org/jira/browse/COUCHDB-431
Couch admin console: http://127.0.0.1:5984/_utils/
CouchDB Cheat Sheets http://wiki.apache.org/couchdb/API_Cheatsheet http://www.sowbug.org/mt/2008/06/couchdb-cheat-sheet.html http://blog.fupps.com/2010/04/20/the-antepenultimate-couchdb-reference-card/ http://www.andyjarrett.co.uk/blog/index.cfm/2010/3/29/CouchDB-quick-refstarting-guide
Chrome Extensions http://code.google.com/chrome/extensions/extension.html