C. Testing apps? I have no real idea what you mean.
Sorry, I guess I should have been more clear, I just typed in word for word my brief shorthand notes :)
Basically, the idea that we had was the concept of getting users to volunteer to "own" an app, ie. responsible for yelling when we break an app. This already sort of happens, but never in a formal way. We never decided the details, but I envisiage having one person volunteering to each test their favourite app on every release and filing bugs. (in a way that is helpful, we'll have docs for that)
-James