InfoWorld - Vapor was in the air this week as rumors swirled around two products that exist only as pixels, not molecules: the Google Phone and the Apple Tablet. In its war over 3G ads, AT&T fired back at Verizon (and missed); Twitter got dissed; and Activision dodged a Kalashnikov bullet with its wildly popular Modern Warfare 2. Can you hit the bull's-eye with this week's quiz? Give yourself 10 points for each correct answer. Now: ready, aim ... fire!