A small clue as to Apple's iCloud plans at WWDC surfaced Thursday after Twitter's creative director Doug Bowman sighted one of the banners. A peek inside Moscone West showed an icon with a MobileMe-like cloud but a brushed metal, iOS-style icon reinforcing the likely very strong mobile focus. The banner appeared to be deliberately short on details and simply mentioned something about "WWDC 2011" above the mention of iCloud itself.