Your venture aims to attack a very crucial problem in online education. I would invest in it and use it, as I often interview and test students in China and always find it hard to know for certain if the student on the other end of my skype connection is actually alone or not and doing the given work themselves. This plugin would definitely help with my written testing component for my testing sessions, even better if there is a webcam capability that allows me to see the student as well. I’d invest just to help fund further research for this product. Good luck.