Can't think of anything that they showed that I didn't like.

Super developer friendly system with the support of all of the major studios, refinement of social features (friend list, multiplayer experience), refinement/evolution of existing controller and move tech, integration with 3rd party hardware like tablets and PCs, game streaming tech, expanded functionality for Vita ... I can't think of anything else that I was hoping for/dreaming of.

Other than those pining the loss of physical backwards compatibility (which was always going to happen if they were going to move away from Cell processors for the sake of making a more developer friendly system) or those who were desperate to see what the box itself looked like I'm not sure what all the unimpressed were hoping for beyond what was shown.

Is there anybody who was unimpressed that can give us some specific detail on what you were hoping for that they didn't deliver on?