Apple is decorating its San Francisco Moscone Center from many days for its Worldwide Developer Conference 2013 starting on Monday. But Apple has just displayed today very attractive and full of colors banners related to iOS 7 devices and OS X as posted by 9to5Mac today. These banners actually give a brief preview of what Apple is going to launch on Monday. The simple banner showing number '7' actually points towards the launch of Jony Ive's newly prepared OS for Apple iOS 7. While is transparent look resembles same of Mac Pro tower's aluminum.
The banner that have a simple 'X' sign on it denotes the Apple's OS X that will be revealed when WWDC kicks off on Monday. In a typical way, Apple may have some hidden banners that the company does not want to put on before the official announcements being made at WWDC 2013. These banners may be of iCloud and iOS upcoming new versions. Lets just wait till Monday and see what will come out of hidden pocket.