Why do you guys think that Google hasn't added a last updated time to adsense reports? Whenever G is reporting slower than usual, I see my low earnings and start wondering why they've dropped suddenly. If they had a last updated line, I could look and see that it just hasn't been updated in a while. I realize they say that reporting usually is within 15 minutes, but can take up to 24 hours, but it's bothersome at times. Publishers would probably check their account less, meaning they could save $$ on their bandwidth.
I think they want to discourage us constantly hitting their site for stats. If they are unreal time, and inconsistant, it would make us only check the previous day's stats once per day. Besides their servers are in place to serve up ads, not our insecurity. tom