I created a new example that uses the new OR-Mapper for the HTML5 and Google Gears database.
It is based on the an example from the WebKit guys and it is currently ported one-to-one. Thus it works best in WebKit browsers like Safari and only mostly works in Firefox 3. I didn't test any other browsers yet.
If it works you should be able to place notes on the screen which will persist across page reloads.