ATI's PR head responded to a story at The Inquirer regarding Doom 3 performance on ATI graphcis cards. He confirmed that ATI is doing something about the performance of their cards in Doom 3, but that they haven't done anything to their OpenGL driver for almost a year now.
It's certainly time to do something about it as Doom 3 is close to materialisation and released in just a week. The ATI apparatchik told us that we could expect some performance boost with a new driver release but he was not specific when it will release the mighty Doom 3 driver.
There were no really significant games last year which used Open GL. It's scary that if we don't have people like John Carmack with Doom and Tim Sweeney with the Unreal engine we might lose Open GL to the extremely popular DirectX programming. Two guys have stood up to Microsoft. They like to make their games work on Mac OS and Linux as well and there is a market there, not big, but at least significant.
The good thing to know is that driver is coming and ATI might get closer or even faster then Nvidia, it would be safe to say that it will at least get much closer performance wise than it's able to do now.