Shoot me an email, and a description of your idea, and I will take an hour of my time to draft a road-map for you that you can take to any developer to execute. Gratis.
[My commercial interests are online advertising, education software, semantic web, data-warehousing and everything middle-east. My Open Source interests/hobbies are Lisp, Android and the JVM. If you're not doing any of these, your ideas are guaranteed safe with me, at least for the next 24 months. And you have the whole of HN standing witness to this.]