HTML5 features emerging in popular web apps

• GMail now supports dragging & dropping attachments & images in HTML5 compatible browsers
• All popped out windows from GMail will will continue to work after you close your main window. This includes GMail Tasks - the TO-DO list tool built into GMail
• If you are concerned about the security issues with Flash or don't like plugins, you can try the YouTube HTML5 Video Player
• Apple iPhone, iPad and Android support HTML5

Work in progress...

Related:
Get ready for HTML5