http://www.macrumors.com/2008/06/05/os-x-iphone-and-os-x-leopard-banners-at-wwdc/
Crunchgear has posted the first banners at WWDC which promote both "OS X Leopard" and "OS X iPhone". The "OS X Leopard" banner reads "The world's most advanced operating system," while the "OS X iPhone" banner reads "The world's most advanced mobile platform."