Would this be enough to cause people to switch en masse to this hypothetical new mining technology?
Considering most "miners" are people who are using equipment they already have, probably not. Dedicated miners, who knows? Probably?
I know that if an ASIC design came out that was fast and cheap enough, I might buy into it, but it'd have to be my view of fast and cheap enough. I don't have cards dedicated just to mining, they also serve the purpose of LAN gaming. But I have interest in BTC, so back to the first sentence...