its already more stable then vista. and far more friendly.
from here http://xbox360.ign.com/articles/100/1003728p2.htmlIW Engine
As Seen in: Call of Duty 2, Call of Duty: Modern Warfare, Call of Duty: World at War, Quantum of Solace, Modern Warfare 2
That would be IW as in Infinity Ward, the legendary developer behind arguably the biggest franchise of this generation, Call of Duty. Although the original game in the series ran off the id Tech 3 engine, for the highly regarded Call of Duty 2 the developer built its own in-house middleware which, until recently, had no official name. When questioned at E3 this year, however, we were told by an Infinity Ward rep that the upcoming Modern Warfare 2 would be running on the IW 4.0 engine, a generation beyond what we saw in the so-spectacular-it-hasn't-aged-a-bit Call of Duty 4, released in 2007.
If you've played that game, then the quality of the engine and the experience it can deliver needs no introduction. Phenomenal animations and lighting lead the way, although its ability to handle complex A.I., amazing sound, depth of field and dynamic bullet penetration - all at a blistering pace - cannot be ignored. Better still, it runs a beauty over a network, leading Call of Duty to be one of the most successful online experiences of all time. The engine enhancements for Modern Warfare 2 are subtle, but powerful. A new streaming texture technique allows the world's objects to appear in far greater detail and resolution, while there have also been major improvements to the lighting, physics and A.I.
The game utilizes the in-house IW 4.0 game engine, which is claimed to be a generation beyond the capabilities of the engine used in Call of Duty 4. The new engine can accommodate larger worlds, enhanced graphic detail, and more efficient rendering.
Infinity Ward has addressed the issue of enemies that continually respawn at different points of a level. The developer demonstrated that the game engine uses a "dynamic AI," which has replaced the respawn system and allows enemies to act more independently. These "smarter" enemies are designed to actively seek and drive the player forward through a level, and can break away from set behaviors such as following a designated route in order to attack more quickly. The player cannot depend on an enemy being in the same location because enemies will behave differently each time a level is played.