Re: Why did NVIDIA skip the revision of Direct X 10.01 on their 9800 GTX/GX2/GTX 260/
^ yeah, most likely that is the main reason. The issue isn't as big as what ATI did regarding
SM 3.0 support back then. I have a feeling this won't really be too important.
I did hear some controversy about Assassin's Creed and DX 10.1 support regarding ATI/AMD in the past, giving better performance for their cards but then DX 10.1 was withdrawn again in a patch by the developers, but I heard so many conflicting stories about it that I never really knew what to believe.