Philips today announced that an amBX-enabled multiplayer demo of Quake 4 will be available for the press and the public to play on a dedicated amBX booth at QuakeCon, Dallas, USA, starting today 2nd to 4th August 2007. When running and jumping in the game, you will actually feel the air move around you, together with the effect of landing and impacts. Weapons will generate custom effects, including surrounding light, rumble shudder and fan blast effects from the rocket launcher. Rear view lighting is also darkened when players use a weapon scope mode.