WWDC 2012 will be held from June 11th to June 15th at Moscone West in San Francisco and WWDC banner goes up in Moscone.
Apple previewed iOS 5 last year in WWDC and this time it is being expected that iOS 6 will be previewed along with Macbook Pro.

The slogan of the banner says,“Where great ideas go on to do great things.”
It is being expected that iOS 6 will have Facebook Integration, Redesigned App Store, iTunes Store & iBookstore.
We will have to wait till Monday to find what Apple reveals in WWDC 2012.
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