Looking for someone to build a prototype

We are located in Cleveland, Ohio. You can find some informatioon about us by searching for the name Exential. This is the name of our IT consulting arm. This project would be for our new company Access Mobility Inc. Unfortunately, since it is a new company, there is not much info about us on the web, but you can find one of our Mobile products at Cellepathic.com. What you see at Cellepathic is only a part of what we do. We are also building mobile application for a variety of enterprises.
We routinely work with contractors and consultants on a "1099" basis, and would prefer a fixed fee arrangement, but and hourly basis with a project estimate is also ok.
We have at least 3 prototype concepts in the works, but we will start with one, and if the relationship works well then we will stick with that individual for others.