Well, I called the company that makes Copilot regarding an SDK. I am waiting for a call back. I do not know who to call regarding Routis, could not find a number.
I also have called NavTeq (
http://www.navteq.com) the company that provides all the navigation databases for 95% of the US and Europe. All factory GPS systems and most software solutions use them as the database backend. I am waiting to hear back from them as well. The problem with them is we would have to write our own GPS software, so that would be a major undertaking. I told them to get us in contact with a development partner that just offers an SDK that uses there databases.
We will see what happens.