The above commercial is the newest made by Microsoft. Many people were wondering who the new spokeswoman for PCs were and it turns out that her identity has been revealed. Her name is Lauren DeLong and she has appeared in several movies already [IMDB profile][personal website].
On her website, DeLong claims she has done 20 films and commercials with the next one being for 7-Eleven. Below is a picture from DeLong’s MySpace.