The banners give hints to what Apple is going to present at the event.
We reported that the iOS 6 will be introduced at the Apple conference and now we find that the company has also prepared presentations for iCloud and OS X Mountain Lion.
Besides those banners, there are also others mounted in a different part of the building and they show that Apple will promote AirPlay.
However, this time Mac owners will have the possibility to transfer images on their PC to a television.
Analysts don’t think Apple will release the iPhone 5 at the WWDC this month. The device is expected to be released in the fall.