That's a bit a bit of sensationalism isn't it? Overall response for the 177.67 beta drivers were overall very well received. If anything they should be credited for keeping their customer's in the loop and releasing a new version when sufficient amount of bugs have been fixed.Due to fallout from the 177.67 driver
The 177.68 driver did have a lot of changes from the 177.67, they were able to find and fix more bugs on a beta driver and released it to the public to try out in a extremely fast manner. Is that not after all what beta releases are for?
ATI's binary has had on going (and very old) bugs still not addressed in them either despite just releasing an "official" driver every month with the same bugs present over and over.