The one reason I love X-Box is cuz of the ports it brings to the PC! Konami was smart enough to do the comparatively easy X-Box to PC ports for a fairly painless buck and it seems it's paid off for them as they're continuing the stream of ports. It seems Silent Hill 2 was popular enough on PC to warrant Silent Hill 3's port even before the X-Box. My guess is that they're putting out the PC version first to iron out bugs w/ patches and then put out the X-Box version for which code rigor is much higher as patches are almost impossible. Things may have flipped around to the point where a PC console port is a good indicator of an X-Box port.
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Laptop:
1.6@2.13 Dothan 2MB (Pinmod), 2 GB 533mhz DDR2, GeForce 6800 360/730 256MB, 100 GB 5400 RPM, 17" UXGA+