Microsoft, which has been trying to force Windows Phone into the Android and iPhone conversation in its recent commercials, is going head on against Apple in its latest spot. That's not surprising (as Samsung loves to pick at Cupertino all the time), but what's hilarious is that Microsoft is using Apple's own Siri to do the ribbing in the commercial. You can hear Siri poke fun of the iPad when compared to the Surface in the ad. It's pretty good (for a commercial). [Windows Video]