Well one problem fixed and another raises its head for Nvidia.
If they can only get frames by using an optomised 16 bit precision and even then the FX cards dont compete what hope is there? Even the Det 50's will be scrutinised beyond belief by reviewers and you can bet your last dollar, although you probably spent that on your FX card, they will have 'trade-offs' in the DX9 compliance to be competative.
Heres the full deal from the Valve press release over here.
Not pretty, not pretty at all.