Wow, I don't think I have ever seen such a positive reaction to what would certainly send a lot of us off the deep end.
My older brother, now 39, has Asperger's. If you look back on a lot of the men in our family, it's clear that some of those traits go wayyyy back, with vastly differing circumstances. My granddad was the town pharmacist and a beloved community leader. My uncle is a surgeon, incredibly talented but somewhat awkward to interact with. People seem to ignore the social difficulties the more sucessful the person - almost like they're more willing to think of it as eccentricity associated with intelligence.
My brother's Asperger's is coupled with some pretty severe learning disabilities and a family history of depression, so we all had a pretty complicated time of it when he was growing up, especially him. And especially with bullies, as another mom posted. And all this was a lot tougher in that he was born in 1969 - they had no idea there were any sorts of problems until he was six and started school. (That was around the time I was born, and Mom says he didn't seem to unsettled by the birth of a sibling as he was totally absorbed in the Watergate hearings.) He has only been correctly diagnosed over the past year or so, we got some pretty wacky diagnoses in the past that just didn't fit.
Okay, so this wasn't really the type of response you were looking for.
My sister in law is a theraputic specialist in the fields of Asperger's and Autism. It was through several long conversations with her that I recognized lifelong traits of my brother's as having an uncanny similarity to Asperger's. Obviously she is a big believer in early intervention, as that is her livelihood. She's had some pretty great sucess with her kids, who range in age from 18 mos to five or so.
If I were in your place, and given my family history, that is certainly a possibility, I would go for as much early intervention as you can get. These kids don't learn social cues from other kids spontaneously, and that sets them up for some pretty cruel stuff in school. But they do interact very well with adults, and a caring teacher giving them help with social cues can set them up for an easier time of it when they hit grade school. We would all give our eyeteeth to have been able to help my brother in this way, but alas...
And unlike diagnoses of ADHD, etc., this doesn't involve pharmaceuticals, just occupational therapy, etc., so I figure if they are wrong about the diagnosis, how much can that type of therapy hurt?
Good luck!