Penny Arcade announced that pre-registration for the Penny Arcade Expo (PAX) consumer event slated to invade Washington State this August 25th-27th has been extended to August 3rd at 6:30pm pacific. On the exhibit floor PAX '06 attendees can expect to get hands on with yet-to-be-released games and products from the likes of exhibitors Microsoft, Nintendo, Nvidia, ArenaNet, America's Army, Turbine, NCSoft, Ubisoft, Mythic, Sabertooth Games, Foundation 9, Rockstar, Flying Lab, Creative Labs, The Behemoth, Garage Games and Red Octane among others. In addition to pre-release games on its show floor, PAX offers attendees a host of game-related conference sessions, parties, concerts and contests, including the grand-daddy of game challenges, the Omegathon. Details of this year's Omegathon prize will be announced later this week. Pre-register for PAX here .