Besides Production projects I have made many prototypes (not promoted to projects ), POCs and libraries based on TRAILS. ie: TRAILS WebMail, swing version of TRAILS based on jGoodies, XStream extension based on TrailsDesriptors, Trails & Compass integration, Trails components for AppFuse, and more.
Thank you Chris very much!!
Telemarketing campain system
Using MySQL with a dozen-odd tables, a couple of relations here and there and very specific demands from the customer to include any things not yet part of trails.
Security is used at great length as is Internationalization.
Let's get busy adding more!