Aspergers, like autism, is real.
The problem with aspergers is not only who is diagnosed, but when. As far as the psychiatric community as a whole is concerned, (at least from what I've read) an adult diagnosis of aspergers is impossible. By that time, it's impossible to distinguish if they are suffering from a biological condition, or they were simply "raised by wolves." I agree with this opinion.
In addition, there are those adults who feel that an aspergers diagnosis gives them carte blanche to act like an asshole. It also contributes to this understanding of "specialness", which really helps no-one, independent of any sort of medical evaluation.
My brother-in-law has aspergers. He was diagnosed at around 17 which is still kind of late, IMO. I'm no expert, but there is definitely something different about him that social upbringing can't account for. (Especially since I know his parents) I also know of some of the stuff he did as a kid, and it certainly seems to be consistent with aspergers. There's that arrogant part of me which wants to say "Trust me, the dude has aspergers.", cause seriously, he does.
I certainly noticed some similarities between my bro-in-law and my nephew, who is autistic. Different, but same. I know they call it a spectrum disorder, as in: there are degrees of severity, but I felt there was something intrinsically different. i.e. If I pushed aspergers to its extreme, it would not end up as autism. So I honestly dont know what the story is currently about how the two relate to each other. I think at one point it was viewed similar to a spectrum relationship/degrees of severity, but I think there are some schools of thought who now say that it's not. It's part of the same "family", but they don't populate the same axis.
I can't speak to that, however, but I tend to agree with the family instead of axis theory.
I don't think it is something that necessarily needs to be treated, either.
There is no treatment for aspergers syndrome, nor is there with autism. It's like saying there is a treatment for dwarfism. It's a condition, not a disease. There is special education which can assist with cognitive as well as social skills, as well therapy, both emotional and physical. (Then there are also those nightmare places like the Rotenberg center) But there's no *treatment* to help them *not* have aspergers, and there is actually a pretty vocal part of the autistic community who have a serious problem with the attitude that the condition is something to "cure".