State of the G400 ICD
Matrox just released a new OpenGL ICD for the G400 that speeds things up a bit--the Quake II timedemo (at 1024x768) shot up from 61.9fps to 70.7fps. Unfortunately Half-Life performance didn't get as much as a boost. The G400 just doesn't do Half-Life very well mainly because the game uses so many textures.
I am, however, very encouraged by the progress Matrox has made in the past month in optimizing their OpenGL ICD. I think they've learned from the whole G200 debacle and have a highly capable team in place that will continually improve OpenGL performance.