You're right, he talks in the video I linked above about how different the CM-1/2 architecture is to the CM-5, but how the ideas of "data parallelism" on "virtual processors" maps onto both designs.

Thanks for the info, I have seen variants in old pdfs around that have the !! parallelism construct instead of using the algebraic forms of alpha, beta, and dot. I find the latter form as described in the book The Connection Machine to be very elegant.