I must say that my standard Macbook Air preety much has the fan going full bore if I am running just Safari (with a Java window open) and MS excel 2004. That is 6200 rpm per iSTAT pro widget. I did not think this would be the case, but after two days of productivity, normal use, that fan is on at max almost 90% of the time. CPU temperature seems almost always above 135 degree F. Yes, the computer is on a flat surface and vent is NOT blocked. I am wondering if this is normal use situation or if I have a bum Air? Also, I am noticing the hard drive clicking sounds, which I didn't know still happened with modern hard drives.... I was expecting a quiet experience, but it is not the case at this point. My Air is moving too much Air.