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. We present an HTML5 logo.

Or as Zeldman so eloquently puts it:

http://twitter.com/#!/zeldman/status/27374450236194816