Smartphone application

A friend of mine and I have come up with an idea for an application for iPhone, and perhaps other smartphones as well. Firstly, I would like to clarify that it is not the "man, this is so damn koool" idea. We had the basic idea, enhanced it with elements that we found useful and we thought through the details. The bad thing is that neither of us has programming knowledge nor are we studying anything relevant. Even if we could build the application ourselves, as far as we know you need to register a company. So we figured that we would have to contact a company in order to "sell" the idea. This is where I need your thoughts.

Has anyone of you tried something similar? Do you happen to know the legal framework on how to bargain your idea without actually exposing it?

Any input is more than welcome

 

Halo, I almost did not recognize you in your new nick Merry Christmas to you too and go easy on that pudding!!

Thanks for your reply. The idea is relatively original. There are a couple of existing apps that go near the main concept but none of them seems to put focus on the philosophy that we want our app to have. That is what makes us believe that the application will be successful.
All we have found out so far is that when you hire a developer to implement an idea, you sign a Non-disclosure agreement (NDA) but I don't know how such agreements work in detail or how much security they provide. I hope there is a legal-geek around