I believe, without hard date to support, that the more HR people a company has in general, the less likely they are to hire people with Asperger's. And if those same companies do hire an employee review process that becomes very political/subjective/social is going to filter employees with asperger's out.

  If you have a job that fits their skills and don't ding them for not say golfing with the "team" I think there are opportunities to pick up highly talented people that other companies are not chasing who will stick around.