There are all kinds of applications for the POET OI, I will not go into them in details.
One of the major concern is whether this technology holds up when produced in volume. If it does, adoption will come speedily. That's the importance of entering production, even if the initial orders are somewhat small.
Producing a car when you've never seen a car is hard. Producing 10,000 cars when you have a production line is easy. POET's at that stage where the first 100 cars are rolling out. You can figure out what comes next.