Tropical_Island - 4:57 pm on May 6, 2008 (gmt 0)

Yes - some advertisers are seeing a delay in their stats today. The engineering teams are aware of this and, as you might imagine, are working to resolve it as a priority. Please know that ads have continued to run as normal. This issue revolves around the reporting of statistics only, and does not impact ad delivery. I'll post again when I have anything of substance to add - and, in the meantime, my apology for the inconvenience this is causing you. AWA

From AdWords Advisor in the AdWords forum