No, I am not dubious that Asperger's Syndrome exists. Or that it could be positively correlated with being a geek.

But my observation of psychologists is that they go through fads of diagnosis. I would bet that a lot of kids who are currently being diagnosed would not have been diagnosed a few years ago, and most would not be so diagnosed in a few years. Most are probably within the normal range of human behaviour and are just fine. Remember that psychology is the "profession" which was responsible for mass misdiagnoses of childhood abuse (see False Memory Syndrome), electroshock therapy, frontal lobotomies, etc, etc, etc. While I acknowledge the difficulties in establishing a real science of human behaviour (the lack of useful models much simpler than a human is a non-trivial problem), I reserve a substantial amount of doubt on their claims.

This goes double when their claims allow non-technical people to take pot-shots at people who are otherwise put on a pedestal. (People have a strong tendancy to avoid uncomfortable comparisons with others, typically either by elevating the others to a god-like status where you don't have to compare, or by cutting the idol down to subhuman status so that the comparison is more comfortable.)

But this is a generalized level of doubt. I have not done more than read the general articles and had a gut level reaction. If I cared then I would look into it farther. Until then I don't know, but am unconvinced that self-proclaimed experts know either.

Disclaimer: As a kid I was diagnosed as having childhood schizophrenia by someone who was thought to be an expert on the topic. For a variety of reasons I am confident that the diagnosis was ridiculously wrong. And that initial experience may have permanently biased me on the topic of psychologists...