1. The browser is becoming an operating system. It needs to be able to start acting like one. Offline storage is a big part of its transition.2. Multimedia support (video & audio) for low-power devices (phones, “tablets”). Adobe really hasn’t been able to get Flash right.3. Google.4. XHTML 2.0 is dead.5. Vendor dependency.6. Patent dependency (though h264 doesn’t really help things).7. “Div”-itis isn’t just ugly, it also just plain sucks for real document interpretation and contextualization.8. And on, and on, and on.
• YouTube (WebM and h264 video)• Scribd (semantics)• Gmail (notifications)• Vimeo (h264 video)• Facebook (History API, Geolocation API)• Apple.com (a little bit of everything)• Pretty much every (true) mobile website
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1- strict.dtd">