At the iLetYou blog, I wrote a blog post about Product Service Systems. Check it out.
Product Service Systems put the emphasis on results, rather than consumption of a product and the inefficiencies and waste caused by pure consumption. You’ll surely hear more about Product Service Systems, both from myself and elsewhere.
BTW–Software as a Service is a huge example of a Product Service System. The analogy between SaaS for computing and PSS in general is very strong. How they both change the world may be equally profound.