Developer's Wish List of the forum. You can vote on ours and post your own requests too in the User's GCD Feature Request! You need to be a registered member of the forum to play. Please vote and or add your own comments to existing requests.
GNU Public License. The backend C++ library is open source, and the ArcGIS plug-in user interface is freeware. However, nothing is ever really for free. We have been able to complete this works thanks to the generous grants and contracts of our partners. The research and software development to date has been funded from a mix of public and private funds. Future software development and features are partly dependent on our ability to continue to secure grants and contracts to do this work. However, many small features, bug fixes and improvements can be made with smaller investments and donations from users.
with us and we can discuss setting up a contract or grant.