Originally Posted by nekrosoft13
not worth it
Indeed, SM4.1 support would have needed redesign of ROPs and some other fun things for a speed bump called G2xx, it just would have been too much work and too soon.
With their next architecture in which they actually do big changes they are going for SM5 which includes all SM4.1 changes.
So yes, they will bring a chip with dx10.1 support in 2009, but that's not why we are exited about it.