Some common debugging steps to follow when dealing with the HTML5 offline application cache in the Safari Mobile browser.
Articles on HTML5
Insights on the adoption of this new standard with case-use examples on the new APIs introduced by HTML5.
The XFBML markup language passes the W3C validation in HTML5 only if served as application/xhtml+xml.
Using HTML5 in a way that is forward- and backward-compatible, by taking into account browser support and accessibility.