@Craig_Matthews: I understand not wanting to lock the OS into supporting those features. There were some problems when Twitter or Facebook changed the API, and they had to roll out an OS update. However, they should have come up with some kind of plug-in model that would have provided the same functionality.
That's exactly what they need. I certainly get maybe not tying the phone's OS to specific named services (e.g. Facebook, Twitter), but a plug-in model that you suggest would solve the problem nicely and obviously open it up to more than Twitter and Facebook.
The integration of everything from different places into hubs is most of the reason I bought this awesome monstrosity of a phablet and it's an example of where, IMO, devices should be going in the future. Having to go into the Facebook app when I want to bring up the photos from a friend's trip is going to definitely feel like a step backward into the "iPhone way" of doing things.
IMO, Windows Phone 8 is pretty much what Android wishes it was, and makes the iPhone look like a feature phone because WP8 is all about bringing all your stuff into your device in a consistent and useable manner. Now it seems they want to go in the iPhone direction unfortunately. That's a real shame because this phone, as it is, kills.