I agree. It would make more sense to be white when wifi is on. From my experience, 90% or more of the time it is white. However, on occasions I see it blue. At this point, I stopped worrying about the color just as long as either one is working correctly. Like you I am 90%+ on wifi and my battery use is phenomenal (I'm a light - moderate user). I usually have it on battery for over 15 - 18 hours of daily use before docking it for its nightly charge. More often than not, I have 50% + charge left.
