Anyone who develops a Commercial Addon and uploads it to us are free to license the Addon under EPAL.
Anyone who buys one or more Addons that is Commercial are obliged to license their site under EPAL.
When using EPAL, always include a copy of the above license under epal.txt
Enduser PHP-Fusion Addon License (EPAL) file header
When using EPAL, always include the above license notice in your files