Google recently did a page on using its SketchUp software in teaching autistic children. This is obviously not an "autism intervention", but is still a pretty cool toy... and, frankly, if it's easier for a child to use than an alternate method such as drawing a floorplan (which, apparently, it is for at least some children), then I say to go with what works.
SketchUp does look pretty cool, to be honest, and looks far better than some of the 3D modelling software I played with when I was a kid. Given the fact that I'm comparing a modern product of a major corporation to 1990s cheapware, this shouldn't be much of a surprise. Beyond the obvious increase in featureset, however, it looks like they've done a great deal in terms of ease of use. Way to go, Google!
I'm not too sure what to think of "Project Spectrum" (some of the lesson plans are better than others), though I do have one major comment on the intro.
Guys, would you please stop reifying autism already? Autism is not something that "affects individuals' communication skills and ability to deal with social interactions". Autism is a description of, among other things, people's communication skills and ability to deal with social interactions. Gyah.