Mobile Web Toolkits
Additional Resources for jQuery Mobile and Drupal
Converting D7’s default XHTML to HTML5
The easiest way to convert Drupal 7’s default XHTML markup into HTML5 is to use a theme that is written in HTML5. If you are building your own custom theme for a site, consider using a HTML5 base theme as it will have done all the hard work to convert the default markup into HTML5 for you.