Bioluminescent plants exist as a commercial product. You can order them right now. I ordered some of these myself. (Though I'm terrible with plants. I didn't water them enough, and they died.)

But this isn't vaporware. You can actually order them, and I have. What is vaporware however is the idea of using these as streetlights. With the petunias I had, if you took them into a dark room and let your eyes adjust, you could see a faint blue glow off of some regions of the petunia's petals.

But these are true bioluminescent plants. It took adding multiple genetic alterations to get the petunias to carry their bioluminescence from generation to generation, but this has been done.