The Wilderness Downtown is a project created by writer/director Chris Milk with the band Arcade Fire and Google. The project was built around the song “We Used to Wait”, giving each user a personalized experience using HTML5 and integrating online tools like Google Maps.
HTML5 Reset is a set of files you can use as a template to start a new project. The HTML file contains a rudimentary HTML5 document structure, with all the every day stuff like title, header, footer, etc. It also uses conditional comments to call about half a dozen IE-specific CSS files, as well as a couple popular IE-correcting javascript files
. You can choose from two versions, the “full version” and one that has just the basic features. Both versions are downloadable here.
Another great example of some of the things that can be done using HTML 5 features: Dale Harvey created a playable HTML5 Pacman.
RGraph is a HTML5 library that uses the canvas element to create a wide variety of graph types: bar charts, line graphs, pie charts, progress bars, and a lot more. You can check some of the examples or read about all its features.
Guacamole allows you to access to your VNC server using just a browser, an HTML5 + JavaScript (AJAX) viewer for VNC, which makes use of a server-side proxy written in Java. The current version is almost as responsive as native VNC and should work in any browser supporting the HTML5 canvas tag.
Read more about Guacamole and its features in its official site.
Update: As Mariana says in the comments, another web based VNC alternative is ThinVNC, a pure HTML & AJAX Remote Desktop implementation.
Hakim El Hattab, an interactive developer from Sweden, has created some really great HTML 5 experiments using javascript, the canvas element and some physics.
HTML5Rocks is a great website that combines an interactive presentation about HTML 5 with tutorials and a very cool playground, where you can play with some of the HTML 5 features while watching the code.
Google, Mozilla and Opera have joined foreces in a new high-quality, open video format that could end the ongoing debate about the video support in HTML 5: the WebM Project.
Henry Jones makes a great selection of useful HTML5 tutorials and cheat sheets for WDL.
Derek Bender shares “The Future of the Web: HTML5“, a great looking presentation with an overview about HTML 5.