According to Forrester Research analyst Ray Wang via Sandhill.com, integration ranks as the number one obstacle to SaaS adoption based on a recent survey.  This is consistent with what we are seeing in the market and is a quesition that every application company that chooses software as a service as their delivery model will have to answer over and over.  Time to production and realized value is not only important, it is the premise on which these companies operate and differentiate.  If you don’t have a good answer to this question, get one fast.