PepsiCo Inc. released an Apple iPhone application for its Amp Energy drink to help guys pick up up any one of 24 types of women, from the "sorority girl," to "rebound girl" or "punk rock girl." The users get coached on facts that might be useful, such as computing a carbon footprint to impress "the treehugger". Those who "score" are encouraged  to post details such as name, date and comments, for their pals via Facebook and Twitter.