W3C posts draft standard for local database storage
The W3C (World Wide Web Consortium) has posted a draft set of APIs that Web applications could one day use to store structured content offline. The proposed standard, recently renamed as the Indexed Database API, will provide an interface that Web application developers could use to have a user’s browser store database content for offline use […].
Typically, today’s Web application, such as a browser-based e-mail client or a calendar, will draw its user data from a database that is accessible from a network. In some cases, however, the user may wish to use the application while not connected to the network. Web applications could use these APIs (application programming interfaces) to store copies of the data in the browser itself.
http://www.w3.org/TR/2010/WD-IndexedDB-20100105/
201001 standard storage w3c web application