One software license is required per developer.
Run-time royalty free.

Please note: NetAdvantage for JSF 2009 volume 2 is the last version of this product Infragistics are releasing. Customers will be able to continue buying NetAdvantage for JSF 2009 volume 2 without subscription. However, effective December 31, 2009, Infragistics are moving NetAdvantage for JSF to their Extended Product list with plans of retiring the product one year later on December 31, 2010. The during the time it’s an Extended product Infragistics will continue to provide product maintenance and support.  Once the product is retired, Infragistics will no longer provide maintenance.