Are there any plans to make charts available for inland US lakes (or at least inland regions) for the Navnet 3D? Safeboat USA is shipping their boats with Navnet 3D systems all over the country. Unfortunately, there are no charts available for inland areas, since the 3D won't take Navionics cards. I had to install a separate Lowrance HDS chartplotter just to have a chart of my area (south TX). It would be nice if there was a way to get charts for areas other than the great lakes, ocean, and MS River for the 3D!