That's precisely why we developed an early deployment group for immediate pattern file delivery. We built in a delay to wait a couple hours before deployment to everyone else. Saved our butts this time. Trend Micro's QA has been horrible lately.
Yah... but normally, it's that first couple of hours during an outbreak that you really *need* to make sure the user base is covered. I don't recall this ever happening before. With software updates, I can see... but with mere pattern files, earlier is better than later. Except this time. :-)