My GPS is outdated. It is a mapping model but the resolution and software sucks. Has anyone used the DeLorme units with the SPOT Locator, text messaging and tracking options? This would negate any need for a satellite phone but I was wondering if the rates were ridiculous since they know that a it could replace the need for a phone. Also, I wondered how the maps and interface work for hunters. I have messed with some of the touch screen units and wasn't impressed with them. Anyone have $0.02?