In your survey (at the site) I stated that I would happy to pay up to 150 dollars for the Delta. However I would just like to say that in its current state it looks very flimsy (it could break at any moment).
The strength and quality of the build would reflect how much I would pay. I recently spent 100 dollars on a mouse that after 3 months, now no longer works. Yes it is guaranteed, however I hope you get my meaning.
PS. Kickstarter or Licensing. However you go about it, I hope you succeed.