There's plenty of work to be done. The researchers want to combine their shape forming work with other discoveries into tissue patterning, and they need to understand how cells change in response to this folding.

The practical implications are already evident, though. This could lead to lab-made organs that are designed to exact specifications using the natural processes of the cells themselves. You could also see soft robots created largely from living material rather than inert substances like rubber. It's a tad creepy (imagine robots that can grow), but it could also dramatically expand what's possible in medicine and machinery.