These Robots Can Hear Each Others' Robot Thoughts

Same story previously submitted here:

http://news.ycombinator.com/item?id=2880815

I'm pretty sure there was another as well, with some discussion, but my search-fu has failed me today.

ADDED IN EDIT:

Ah, here are some more:

http://news.ycombinator.com/item?id=2883656

http://news.ycombinator.com/item?id=2888417

I was wrong - none had discussion. Perhaps this fourth attempt will get some traction.