I think it is hard to see from the demo what your product actually is and its ultimate purpose. To correct this I would add some product description details on

I think it is hard to see from the demo what your product actually is and its ultimate purpose. To correct this I would add some product description details on the left or right of the video with a call to action, or noticeable link for more info. To make it viral, find an individual who is hated and currently hot in the news, advertise "hit x in the face", paper mache individuals image over a round piñata. I also would increase the sharing methods and make it so individuals encourage others to do the same, a twitter tool at minimum. Also allow voting on the next individual to be hit in the face. Now if you do not agree with the violence, as some will, how about aligning you marketing with the product. For example: Offer to loan 20 free cameras to individuals living in a bad crime ridden area. Allow voting for the neighborhood and easy sharing tools so people can ask for votes. Next when a crime is recorded on the service, post images with a reward of a few hundred dollars or so for the first person to identify the suspect that leads to an arrest. You will need to do some PR work to get the word out for this to work but it should get some mainstream mentions. People may say it is against civil liberties, but this will work to your advantage with PR.