Ben Brooks on iOS 5′s Notification Center:

All of this really leads to the most annoying part of the new Notification Center: the fact that there is no indication, or notification anywhere that there are still notifications in the Notification Center.

This is by far my biggest annoyance with Notification Center. I don’t agree with Brooks that the entire thing adds no value because I still believe that it’s a huge step above what we had before. I do appreciate the level of customization that is available. I think depending on the habits of each individual user will dictate how useful it is.