actually, its the symbol for Autism Speaks, and it's a horrendous campaign that purposely demonizes autism and asperger's syndrome, and focuses on 'curing' autism through any means possible, rather than understanding it.
they claim to be all about listening to autistic people, but there are no autistic people in any positions of power in their campaign.
if you want to support a campaign that actually helps people with autism, check out the Autism Self-Advocacy Network.