I was speaking at the HTML5 Dev Conf on May 21, 2012 on Client Storage.
The talk covered the state of client storage, touching on cookies and local/session storage. It looked at the WebSQL specification, the reasons it was deprecated and how IndexedDB is the next big thing for a database in the browsers.
It also spoke about the limitations on IndexedDB and the list of libraries that could help using IndexedDB now. Some libraries covered include gazeljs, db.js, queryIndexedDB and backbone's IndexedDB Adapter. I also spoke about the JQuery IndexedDB library that I wrote, in addition to Linq2IndexedDB that Kristof and I are working on. I also introduced the IndexedDB shim on WebSql that would let people use IndexedDB API on Safari, Opera - enabling it on iPad and the iPhone.