GPS Tool is a Mac OS X (Cocoa) batch processing tool for GPS data built on top of GPS Babel. It also includes a plugin based system for importing GPS data so that devices which are not supported directly by GPS Babel can be used. In my case, I have an RBT-2300 which is not well supported, and have included an importer plugin which ultimately uses a ruby script to perform the data transfer process, and thus this repository also includes a cross-platform script for downloading data from this particular GPS device.