A couple month ago a new licensing fee was introduced at PowerToTheBuilder.com for the PB UI Controls. Anyone looking to use version 2.6.0 or later in a commercial\corporate application, will have to purchase a license. The cost of the license is $99.95 USD which cover's all developers and applications in your organization.

The new licensing model was introduced to help with the costs associated with technical support, future control development and enhancements and web site maintenance. 

If you have any questions please don't hesitate to ask: info@Werysoft.com

http://www.powertothebuilder.com/Purchase.aspx