A.
My brother (37) was just diagnosed with this so I grew up with it but didn't know it. He was't diagnosed when he was younger because the syndrome wasn't in the diagnostic book (DSM-IV) until 1994 and he was already out of college. It is a form of autism but it does not have a speech delay and the people with it generally are of average or above average intellegence. My brother says he can't read other people - he can't really understand fascial experssions etc...
Some good web sites are www.autism-society.org and www.aspergers.com.
There are also some great books out there that can help too. Hope this helps. If you want more info let me know and I can send it directly to you.
Ann