Narciso Jaramillo demonstrates tools and prototypes that have been built into and on top of Brackets, discusses the Brackets architecture and its extensibility model, and lessons learned building it.
Michiel de Jong suggests solving the data privacy and scalability issues by enabling mobile apps to connect to user's preferred back-end using Dropbox.js, GDrive JS, NimbusBase, remoteStorage.io, etc.
Kevin Lamping presents patterns for writing CSS for very large websites.
Thomas Herrmann discusses the advantages, challenges and lessons learned in building a multimedia-heavy, interactive HTML5 application with Ember.js.
Chuck Doerr, Asim Malik discuss tools and techniques used by financial firms for native HTML5 UX, and approaches for achieving application interoperability and incremental adoption of HTML5.
Dio Synodinos discusses creating rich visualization tools with HTML5.
Nicolas Gallagher introduces HTML5 Boilerplate, a front-end template that helps building robust and adaptable web apps or sites.
Bijan Vaez discusses building large-scale cross-platform mobile apps with HTML5 including offline support, real-time interactivity, and device APIs (camera, GPS).
Maximiliano Firtman overviews of what you need to know, including labs testing on progressive enhancement, feature detection and HTML5 APIs: UI, core, data, network and hardware.
Jon Moore discusses the pros and cons using HTML for an API media type, as well as the particulars of implementation patterns, from representations to building programmatic HTML clients.