Apple has begun decorating the Moscone West in San Francisco in preparation for this year’s Worldwide Developers Conference, which starts on 11 June.

A huge banner has been placed in Moscone West with the tagline: “WWDC2012: Where great ideas go on to do great things.”

The banner shows a colourful collage of third party aps, including Facebook, Twitter, Bejeweled, Evernote, Instagram and more.

MacStories captured some photographs of the banner. The report reminds us that last year, Apple’s banners revealed the iCloud logo ahead of its announcement at the event.

It is expected that Apple will announce iOS 6, an update to iCloud, and possibly new MacBook Pros and Mac Pros at the event next week