Interesting article on how SaaS + on-premise enterprise applications is emerging as the dominant model for application infrastructures, and is likely to remain so for some time (the author calls this Hybrid Enterprise). I agree with this assessment. I also think that a large amount of the SaaS integration requirement is not fully understood by many organizations. Integrating SaaS applications well is fundamental to obtaining the full value of the investment. Too often, organizations make integration an afterthought.
The Hybrid Enterprise