Fantastic, that is an interesting development. Great interviews from the conference @Rob, I can't say that I would have had the same composure given its spontinaity. It was actually quite informative and I will keep an eye on the etherum based augur prediction market.
Now, I think Mike Hearn recently aluded to having done some research in micropayment spv nodes at around 36mins in here. He seemed concerned that users accounts would be drained by transaction fees over time. I'm not sure if this applies to Lightning Networks but it would be worth checking out.
I just saw the slideshow Jeff made for the conference where he mentions Lightning network as well as something called 'Impulse Network' (possibly his implimentation). He explains it in a video here (skip to 9:47). A redditor who has already interviewed Jeff about it here