As promised the Battlefield 2 demo has been released on Gamespot:
Lock and load, soldier! Take aim at this highly anticipated demo for Battlefield 2, the sequel to the award-winning Battlefield franchise! The new game brings the intensity and excitement of Battlefield 1942 into the modern era with an all-new game engine, enhanced team play, and the latest, most technologically advanced vehicles and weapons systems available.
The Battlefield 2 demo includes the Gulf of Oman single player map as well as the Gulf of Oman 16-player and 32-player maps. There will be a time limit for each game.