Today an announcement has been made by valve stating that its widely used source engine has now been programmed to support 64 bit technology, advantages will include the use of more objects, higher FPS and compatibility and more oppurtunitys for special effects.
http://steampowered.com/index.php?area=news&id=496
This is definatly welcomed showing that valve has not left there community in the dust. It also shows the expandability of the source engine, and i would go so far as to say that it will be one of the first engines to be coded that will provide support for multi core systems/processors.

http://steampowered.com/index.php?area=news&id=496
This is definatly welcomed showing that valve has not left there community in the dust. It also shows the expandability of the source engine, and i would go so far as to say that it will be one of the first engines to be coded that will provide support for multi core systems/processors.