I know that my grandmother, who is a nurse, worried for a time that I had this disorder or something similar. I was extremely unsocial for much of my childhood, had few friends, and exhibited some obsessive behaviors. Thankfully, I do not have Asperger's, and my grandmother has finally been convinced of this by the fact that I'm never home when she calls. Always out with my friends, now that I actually have some. :)
However, I have met at least one person who definitely does suffer from this, and one more who I wonder about sometimes. They are interesting people, if you can engage them in conversation.