Source: Engadget
Article note: Hm, neat.
You're obviously restricted to transparent resins of very specific sensitivity with the technique, but if you aren't worried about material properties it's excellent.
The obvious question from the Engagdget popsci blurb that the actual Nature article answers is that their coherent image is being formed by collimating several lasers into a big fiber to get the right area and density, then pointing that at a DLP mirror array to aim the rays - which is fairly similar tech to existing DLP printers, just with an extra axis and tomographic projection to use it.