Have access to timestamp of when the data was collected

I'm putting in an early request for SiteCatalyst 15. From my understanding the raw data is stored in SiteCatalyst 15. It would be great if we could access the timestamp of the data string in Data Warehouse. I end up dumping a good amount of Omniture data onto an internal server to do additional analysis with data we store internally. The timestamp would help ensure the accuracy of joins.