Anyone heard of HTML 5?

Was curious to see what Google would throw up if I typed in HTML 5. Found this:

http://www-128.ibm.com/developerworks/xml/library/x-futhtml1/

Looks quite interesting to be able to write your own apps and games from just HTML. What do you all think?

I'm not surprised for such thing IMO, someone will complete it out eventually even others don't do it.

As it becomes starndard someday I'll look into it, however currently concentrate on the majority is my priority.