Originally Posted by HogWild
I am planning to use the GPS from the phone. If for any reason that just wont work, an external antenna is my fallback position. I may build one for myself regardless because I think a weather proof case would be convenient and controlling the phone without a remote will be impossible if its in a case.
As for current draw of the GPS, I've done no studies so I have no reason to believe it is a problem yet. When the software is ready to roll I will start to test it. I got a cradle in the mail today so I can mount it for testing.
If the screen draw turns into a big problem, then I will set it to use the dim "bulb" to reduce power or even shut off the screen until I need it. Where there is a will, there is a way.