Siri's ability to parse human language and deliver results--theoretically, I mean--could be perfect for lounging on your couch on a Sunday afternoon, wondering what to watch. It's not a "voice command" situation, really: you don't give it trigger words, you just speak normally and ask for what you want, which is a definite step up from the current capabilities of Kinect. You could ask for movies similar to your favorites. You could ask for that movie about the magicians, or something, where David Bowie plays Nikola Tesla (that is a real movie). You could ask for a TV show with a mystery, made in the last ten years. Assuming Apple can get Siri to live up to expectations, this could be pretty amazing. And Siri isn't the be-all-end-all of voice command; it's not the only service to use natural speech recognition, and there's no particular reason why Microsoft (or Google, or anyone else) couldn't jump in and implement it just as well. Apple just has a head start, because Siri's already packaged and ready to do this kind of task.