There's no doubt about it that GOW is coming for PC. It has been demoed on several occasions with a PC setup (GDC, E3 etc.) and nV News is hosting over a 15 minute ShakyCam video of UE3 demo where in the end of it the presentator plays GOW for a short time with the same PC that he did the UE3 demo with (dual GF6800 SLI).
http://www.nvnews.net/articles/e3_2005/unrealengine3demos.wmv (56.2MB)
This comment was edited on May 24, 14:02.