Jesus, that article was ridiculous. I grew suspicious when he talked about speed being partly due to the processor, when we've all known since we got SSDs that the processor has nothing to do with UI latency (when was the last time you saw CPU usage spiking to 100% just by launching programs)?
The disk has always been the bottleneck, Apple was smart enough to put a fast disk in the Air, and now this guy praises it.
This computer loads faster than the MBP because you've spent the past 6 months loading it with programs, guy. Format the MacBook Pro and it will be just as fast... Sure, the Air might be a great little computer, but for a $999 pricetag, I could get 3 netbooks instead.