This is certainly more of an evolutionary step than revolutionary. Regardless, the report that researchers at the Vienna University of Technology have created the worlds smallest 3D printer is interesting enough. Given that the price is only about $1700 (1200 Euros), it isn't out of the price range of too many, although the resins feeding it are costlier than commodities resins (which are none too cheap these days either!).
The only problem with smaller and smaller printers such as this is that the can only make smaller and smaller parts. That's' great if you are making dentures for an ant, but not if you are making a sculpture for a museum.