We're hoping the future of this technology is very bright (no pun intended!), but there is still a lot of work to get done. We still need to work out how to control the biofilm, and then how the film atcually works. Then how do you go about replicating that synthetically.
Of course, the first prototypes won't have the best definition, so future goals will include work on gowing a uniform biofilm with uniform distrobution of chromatophores. Finding better pigment combinations could also lead to better color reproduction.