Articles about Y!OS
I really think this challenges software developers to have a much broader understanding of the ecosystem out there, the platform upon which to build which includes Y!OS type strategies. Starting to see the value you add to your customer, and realize what you need to write vs what you can leverage. Examples of this are comment systems such as Disqus, as well as feedback systems such as Get Satisfaction. Now, these applications seem first to be targeting the public consumer space, but I guess will migrate to be able to be more private.
Previously software developers needed to keep on top of the newest code level components such as ORM tools, caching tools, unit testing tools, etc. Now however, they need to add to the tools the services and platforms such as Google App Engine, Widget services, Y!OS and servers such as the Disqus and Get Satisfaction.