There are few pleasures that compare with soft-serve ice cream on a warm afternoon.Now, one company is banking that soft-serve devotion is so fierce, fans will be willing to drop real cash for it.ColdSnap is a new machine that was unveiled at this year's CES technology conference.It looks very much like a Keurig for soft-serve ice cream, and it's likely to cost between $500 and $1,000.The ColdSnap machine works a lot like pod-based coffee makers. You insert a pod, and the machine goes to work.It takes about a minute for the contents of the pod to freeze and disperse, and then the fresh-made ice cream is ready.At a time that people are stuck at home, the world just might be primed for on-demand soft serve