Not that I'm aware of, but I've seen some other kickstarters accelerate hard in the last 24 hours too. It sometimes makes me wonder if there are some wealthy benefactors who wait to see if it needs them to sign up at the higher tiers or not. In this case, they had about 1000 people sign on in the last 36 hours or so, so it's hard to say. They did ramp up the emails in the last two or three days, and started encouraging people to post about it on social media. It might have been just enough.