Here's a snapshot of our first official demo application. It's basically one JavaScript file with few dependencies (jQuery and HMAC-SHA1) that uses the Pageforest API to authenticate an existing user, then store and retrieve data in the Key-Value store. The source code of this version is available here: http://code.google.com/p/pageforest/source/browse/?r=eeeeee#hg/examples/keyvalue (JavaScript application and Django project for the server side on Google App Engine).

Next, we are going to change the auth mechanism and require that username and password are entered only on a trusted page like https://auth.pageforest.com/ in a separate browser tab. Then the JavaScript app doesn't have to deal with the details of cryptographic authentication, and malicious applications don't have access to user credentials.