Starting April 1, there has been a spike of traffic to this page from people searching about Bill Gates and Islam. Some Googling led me to this article which describes a fake e-mail floating around entitled "Bill Gates becomes a Muslim! Yes!" The e-mail is a hoax, and my understanding is that Bill Gates has not had any recent religious conversions.
As far as I know, Bill Gates has not been formally diagnosed with autism, Asperger's syndrome, or anything related. However, he has been widely observered exhibiting many autistic traits.
Counter courtesy of digits.net
E-mail me at firstname.lastname@example.org