What I'd like to know is how Skyhook protects operators from volatility. Other ATMs purchase bitcoin at exchanges (Bitstamp, Kraken, etc) for you at the moment your customer uses the ATM. Skyhook never mentions this feature. Neither I see it in their code.
As it stands, there is currently no rebuy script that I am aware of on the ATM. I do know that Jon and Luke had mentioned working on adding this ability with a specific exchange in the near future. I will keep my eyes|ears on the lookout for updated news and will post here.