Java, OSGi and Simplicity Requirements
The primary problem that we should try to address is how to cross the steep threshold that Java puts between an uninitiated developer and a web app. I think having a framework for web apps that provides a skeleton for other applications is the start point that will make a difference.
I like how he mentions both compatibility requirements as well as simplicity requirements as factors when the OSGi Alliance starts deciding how to apply new Java EE APIs in OSGi.
From the OSGi Alliance Blog: "Accidental Complexity"