http://www.youtube.com/watch?v=EHlN21ebeak

In this ad, we see that windows is coming out with their newest product the " Windows Phone 7. " the Sign is the phone, it's trying to appeal to the audience. the signified are the viewers who watched the product. They are the ones's who enjoy smartphone's or those thinking about switching phone's. The signifier is Microsoft selling their product to younger generation to those who enjoy technology. This tries to appeal with the use of humor and the specifications of the new phone.