Do you really need all that personal info on the first page of the survey? You should at least say why you need it and what's coming on the next page. Why not explain your idea first?
Also, I understand the value in explaining the idea on a landing page or similar, but at this stage, I am trying to first validate that what I see as a problem is in fact a problem - then I can objectively propose a solution. Again, trying to make sure that other people want or at least show signs of wanting what I do before I build something. :)
There is the risk that you will waste your time. But doing something new and useful often involves risks. And seemingly silly or bad ideas are often the best - http://paulbuchheit.blogspot.com/2007/06/three-types-of-idea...