It's a novel concept. Aim your phone at a screen, a wall or any other flat surface and project your slide deck, spreadsheets, photos or videos right from your device. Then again: what?
You already have to be concerned with protecting your front and rear cameras from getting scuffed. You guard that huge touch screen with your life. If you're a Verizon customer you can't even scratch the body if you want a warranty replacement without a damage charge. Now, on top of all of that I have to worry about a projector lens on top?
Would a business person that routinely uses their laptop to give presentations find this useful as a backup or emergency device? Absolutely, but that's not exactly what TI has in mind. They see this technology being used primarily in consumer devices, talking throughout the article about the ways that consumers use their devices for content consumption. That's not a winner for me.
You can read more of the projector-in-your-pocket propaganda at the Forbes link below. To me, this is the poster child of dumb ideas.