Munster gave Google Search an A+ for comprehension and a B+ for accuracy, while Siri received a B for comprehension and a D for accuracy. Still, Munster sees big things in Siri's future saying that the software will "improve meaningfully" with all of the updates in iOS 6. Apple CEO Tim Cook has promised that Siri will show improvement. Despite all that, it still remains a focus of Apple's television advertisements. And Google continues to search (pun intended) for its own virtual personal assistant with the latest being its new Google Voice Search powered by the Knowledge Graph that is available in Jelly Bean.