Our primary use case is for an internet application called MyPension.be, where every Belgian citizen can search for information regarding his employment and pension. That's the primary application.
In addition, we use the solution for our internal business core application. We have 2,600 internal and external users. Theoretically, there are 10 million potential users but most don't access it. We've had times when we've broken records, and that's usually connected to publicity in the press.