I am not a coder. I'm barely code-literate. However, I wonder if it would be possible to implement a different data source and make it easier to create larger, more useful maps. To that end, here are a few open source map projects I've found. They all seem to be using TIGER data, so the datasets are free, and it seems that a vector-based approach would increase the amount of territory coverable, maybe even allowing countrywide coverage, given a large enough memory stick. Would any of this help? Has it already been discussed? Just curious.