No OpenGL support ??

what does that mean for all Quake based games including ET ?
I thought this gave the quick breakdown to me from that article:
Overall, applications performed as expected, or
executed slightly slower than under Windows XP. The synthetic benchmarks such as Everest, PCMark05 or Sandra 2007 show that differences are non-existent on a component level.
We also found some programs that refused to work, and others that seem to cause problems at first but eventually ran properly. In any case, we recommend watching for Vista-related software upgrades from your software vendors.
There are some programs that showed deeply disappointing performance. Unreal Tournament 2004 and the professional graphics benchmarking suite SPECviewperf 9.03 suffered heavily from the lack of support for the OpenGL graphics library under Windows Vista. This is something we expected, and we clearly advise against replacing Windows XP with Windows Vista if you need to run professional graphics applications.
So why would we want something that so far shows to show slower performance with applications launching compared to XP, cuts off high end sound card performance and drops OpenGL support ?
