Since its inception in 2004, the Seattle, Washington-based Penny Arcade Expo--PAX for short--has grown in leaps and bounds. Last year's open-to-the-public event saw 39,000 gamers pack themselves into the Washington State Convention and Trade Center for a three-day celebration of tabletop role-playing, console, and PC gaming. For this year's show, the organizers are doubling the exhibition hall space to accommodate more than 70 companies displaying their wares for the crowd.