The guys from TG Daily stumbled upon a new roadmap from NVIDIA that gives a bit more insight in the company's plans for the future. The site writes NVIDIA may offer a DirectX 10.1 desktop GPU in late Q4 2008 or Q1 2009 with next-generation DX10.1 notebook GPUs following in Spring 2009.
A presentation slide we received, but unfortunately cannot share with you in order to protect our source, clearly states that Nvidia will offer DirectX 10.1 support with its next-generation notebook GPUs that are scheduled for a spring 2009 release. DirectX 10.1 is also likely to be offered in the next desktop GPU generation, which should debut either late in Q4 2008 or Q1 2009, with a possible ramp throughout Q1 and Q2 of 2009.
Furthermore, it seems NVIDIA also has plans to embrace GDDR5 memory in Q4 2008.