It has occurred to me recently that there is actually a lot of confusion when talking about maps and adding mapping functionality to a Flex application, be it a web application or a mobile application. When talking about mapping, it’s important to first differentiate between straight ‘mapping’ and ‘GIS’. As well, you also need to differentiate between mapping frameworks & apis and map data sources. Things can get very confusing otherwise. I’ll go through the various options I know about below and try to explain and differentiate where possible.