The biggest problem with Windows Phone which everyone is ignoring

And that is absence of a notification centre. Recently one of my friends got a HTC Trophy. I told her how to install apps and she installed some apps on her own including Whatsapp. A few days later i get a text from her that she is not getting any WhatsApp messages, sometimes she gets a notification but she doesn't know where does it go away later on. Turns out she didn't pin the WhatsApp tile to her start screen and therefore she was not getting any tile counts for unread Whatsapp messages. This I think is really strange as most consumers don't know this and should be fixed! I really hope that there are three screens in Windows Phone 8. One for the main start screen, one for apps, and the third one for notifications just like Meego.