From the Infragistics site:

Quince Pro™ is a private, secure and organized way to collaborate, communicate and cultivate private UX design libraries to ensure consistent user experiences across teams, departments and companies.

First there was Quince, a free, interactive UI patterns and practices catalog.  Quince is still available, but now Quince Pro is available and allows companies to create private collections of their own UX patterns.

This video gives a quick 3 minute overview of the challenges that Quince Pro solves:

The next video gives a 10 minute tour of the Quince Pro features.  It is quite impressive: Introduction to Quince Pro.

You should now have a good understanding of Quince Pro.  What do you think?  Does it solve any challenges you have in your organization?  Once you start using it, I would love to get your feedback.  What features would you like to see added?  How could it be improved?