Spin has been used to develop federated search applications for

• Cancer Research Requiring Human Tissues (PSL)
• Biosurviellance and Population Health Statistics (AEGIS)
• Clinical and Translational Research (SHRINE)
• Research Resources (Eagle-I)

Spin releases once a month (barring exceptional circumstances) at about the end of each month.

Planning about features and releases happens during a weekly conference call, and on the Spin developers mailing list.