[stephenyoung]

"I have no doubt it'll get a great percentage of the Goliaths' sales"

Been learning again and again, you are going to need to map out your marketing plan and probably bring on a co-founder with a strong business background. Having the greatest product in the world will not save you from a poor approach to acquiring clientele.

Get some community validation that your product is as great as you claim, and change your plan from payback to your ex-employer and towards how you can enter their market as a strong competitor and carve out your own place. You're destined to fail if all you're going after is revenge.