Work on HTML5 which began in 2004 under the cover of the WHATWG group and by the W3C since 2007. W3C announced yesterday that HTML5 is now published as a recommendation. Even Techcrunch mentionned it so it's really a symbolic steps beyond the Standards/Open Web community.
hacks libraries that simulates HTML5 expected behavior in non decent/recent browsers) to fill the gap.
There is an interesting article in French about HTML ecosystem and how it works.
Now W3C is to focus on HTML5.1 on one side but more interesting on application foundations. More detailed in this post, it's about to ease Open Web platform application development. Application foundations will cover the following aspects :
To some extend, can't wait for next release