I just saw the news on Engadget and came here to see if anyone was talking about this. I'm going to try this out since my GNex is mainly just sitting in a box now. I miss webOS.
The only thing I wonder about is that I have a Verizon GNex. If I don't use it for calls or anything, does it matter if I flash the Maguro version? I remember I was in the same boat with the Ubuntu phone port but I think I waited for the Toro port. I can't remember.
also, it looks like at least some of the android file system is retained, so that means we may be able to get data working by pulling libs from a 4.2.2 rom. dont quote me on that, ill try it and see what happens when i get this thing to boot. I pulled apart the boot.img and nothing seems to be stopping us there either from what I can tell.
edit: as much as i wish this worked, dont waste time flashing it if your not a maguro device. doesnt boot on toroplus, prolly wont boot on toro either.