According to the W3c, HTML5 hasn’t yet reached a level of maturity that would make it useful to the whole of the internet. Some browsers are capable of supporting some of the features while others don’t.
HTML5, which updates the HTML specification to accommodate modern Web applications, has gained a lot of adherents in vendors like Microsoft, Google, and Apple. But the specification is plain not ready yet for deployment to websites, an official with the World Wide Web Consortium (W3C), which oversees HTML5, stressed this week.
I agree. It’s awesome and has great potential, but let’s not get ahead of ourselves. If we start making major time investments in developing sites in HTML5 now before it is a final standard, we could end up wasting time developing in the wrong direction. We’ll get there soon, but be patient. It’s probably more than acceptable to have fun and give the new potential tags and features a whirl….just be careful. You might shoot your eye out.