netmeg - 6:59 pm on Feb 7, 2012 (gmt 0)
There are a *ton* of things that need to be evaluated at the the time of a click. I think the entire system has become too big and complicated for them to deliver close-to-finalized instant stats (at least with the technology they are devoting to it now). Today I noticed some earnings on channels my own logs say were last visited on Sunday. I never trust the day's stats until 24 hours later, and even those you have to take with a grain of salt until it's finalized at the beginning of the next month. (Although for me, since they started doing more "real time" adjustments, I get fewer and smaller adjustments at the end of the month)
When they were first putting AdSense together, I wonder if they had any idea of the scale it would build out to - or the level of fraud it would entice, or the complications between advertiser and publisher. I'm thinking not.