As we have reported before, Apple has already started working on the decoration for the WWDC 2011 at Moscone Center. We have posted a numbers of pictures of Apple Logo and outside banners for WWDC, but we have no source to check out what Apple is working inside for World Wide Developer Conference. Today a guy tweeted a picture on which the official logo / icon of iCloud spotted, that Apple will unveil at during the WWDC keynote by Steve Jobs on Monday 6, June.