Apple has started setting up for WWDC and the banner behind the registration booth has been set up. And artisan has posted a nice annotated picture of the WWDC banner on Flickr. Roll over the picture to see all the different icons or look at the list.

I think the only thing that might be revealing here is that this hints towards a 64-bit based Intel PowerMac replacement. But what really stokes the imagination is the banners that are covered up. :)