Autism Spectrum Disorder (ASD) is a set of developmental disorders involving impairments in languages, cognitive, and social functions. Computer technologies such as affective computing, virtual reality, robotics and multitouch interfaces have been developed to support people with ASD. These innovative technologies, alone or in conjunction, can be used beneficially in a number of critical areas affecting individuals with autism, their families and professional who support them. This paper considers and reflects on existing researches on multitouch tabletop technology for ASD and identifies opportunities and challenges with designing and applying multitouch tabletop applications for people with ASD.