Loraine Lawson over at ITBusinessEdge continues to cover the issue of SaaS integration and her latest post adds some additional perspective to the issue as well as references a thoughtful post from Dennis Hall over at Pervasive Software on it. He lays out how extended sales cycles, implementation delays, and the challenges of integrating to legacy applications are the common pain points suffered by SaaS application companies as they face the integration hurdle.  As large enterprises embrace these on-demand applications and their usage becomes more ingrained in core operations, the integration question will have to be addressed.