Computers and solid modelling softwares are used to drive 3D prototype part generators by 'sputtering' a polymer material thru controlled jets.
IMO, it looks like it would be possible to do the same with this 'Liquidmetal' and actually produce a working, useable part. No expensive molds or tooling for low volume parts.
I'm not very familiar with this technique. The only prototyping I've seen along these lines involved using UV sensitive photopolymer resins. I suppose it is a rather "cool" application of high technology. But the parts are brittle and have a tendency to wrap. I'd rather have a prototype made out of a truly functional production material.
Who knows? Maybe this "liquidmetal" and "sputtering" are a step in the right direction. But for now, I'm gonna categorize it as "potentially interesting stuff to tinker with", but niche unknown without further information.