As with "fancy eye movements" as some have claimed it - Whether they have much of a help, I'm not sure. Personally I generally read with my right eye, and my left eye tails a fraction of a second behind which generally helps pick up a few details I may have missed - But I notice I have trouble with this if a page's width is too large (HN has a fairly large width and I will read much faster if I make the window smaller). Anything more than that seems as if it would be fairly difficult - But I haven't read into the various techniques.
Can you learn to read at the crazy speeds mentioned in the article? Probably not. Speeding your reading up though seems definitely plausible - At least it seems to work for me, but I can't draw a very good conclusion from just myself in the sample.