HTML5 - JavaScript LOCAL SQL Databases

I just built a demo at http://wmoore.ca/basic/localdbdemo.htm to show some of the possibilities with the new client side databases(that's right databases on customers device) that are part of HTML5(sort of). It shows you most of the common database functions and the code to do it. You can easily learn to utilize databases in offline mode so you can allow customers to work while they are offline and update the online systems later. Or you might want to create a 100% offline tool. If your solution requires a local database you can now use this database structure natively in JavaScript. I am already working on ideas.