I see that the W3C have decided to release a logo that envisions the qualities of the HTML 5 definitions the blurb on their website states
"It stands strong and true, resilient and universal as the markup you write. It shines as bright and as bold as the forward-thinking, dedicated web developers you are. It's the standard's standard, a pennant for progress. And it certainly doesn't use tables for layout."
While I don't disagree with this i wonder just how many sites will actually put a "Built with HTML 5" logo on the page. Honestly I haven't see "Built with HTML 4" in a very long time so I suspect that we will only see it on developer websites that are to do with either learning the HTML layout or to define if a plugin will produce HTML5 content. Or will it creep into site design as a buzz word that will be used to sell systems to clients. A tick box on the tender document as it were. From a design point of view I like the logo and the page shows it rendered differently for different sites in the "Build it and they will come" section.
Check out the logo page here.
Let me know what you think of the new logo in the comments below.