Over the years, I have seen a lot of different business requirements for Xceleius to writeback to a database. The most common is remote scenarios where dashboard end user can persist data to a database so it can be recalled at a later date. Recently for a customer project, my team had re-created the local scenario button user experience with remote storage on a MS SQL 2008 database.
Essentially, the custom Flex component transacts data to a simple .NET web service that triggers a stored procedure. I wanted to see who else has recently had requirements for Xcelsius remote scenarios to see if this is something we can provide to the marketplace. I am in the process of setting up the database on our web server so you can try it for yourself and provide feedback.