Thanks for the reply.
In my case, I was looking for AM3359, skimmed to the end of the list, and selected it, assuming "AM3359" and "AM3359" were the same.
I was under the (mistaken?) impression that the M3 on the AM335x ran masked-ROM firmware and is for all practical purposes not available for end-user programming. If so, M3 examples should perhaps not exist in the Example Projects -- this would be an advanced user/TI internal process. Does SYS/BIOS run on the AM3359's M3?