Is it possible to list all the projected coordinate systems? We don't know what system the incoming data is in, so the user has to select it. While the user can select the most used systems, it would be nice to just list them all for the others. At this point, I don't have any ideas beyond parsing the list below, if that's allowed. So far, all I've found is the ability to create a SpatialReference based on the WKID or WKT.