Kevin Schroeder has a new post to his blog about some of his first trials with the DI container that comes with the Zend Framework 2.

With beta 3 now being released I have started to spend some time getting used to the new MVC components and the architecture in general. I turns out that was too much. When I learn something new I like to start with something broken and fix it. [...] So since I already know how to use event managers the next most basic thing I needed to understand was Dependency Injection. It turned out that I was actually using Dependency Injection and just didn't know it.

He starts with the most basic setup - a "Di" container with one class, "Test", added to it. He also shows how to inject things into the class inside the container and how to use a "setter" inside the called class.