Imo the most important two that customers might actually use where, HDMI out and camera.
I defended Symbian 1-2 years ago but the phase that OS is moving is unbeliavable and doesn't deserve to be in the market compared to Android that's rightly so taking it's place.

Oh well for Nokia lover i'm sure ranting a lot today, but it just makes me sad how slow Nokia has been for the past 3 years. I would have never believed 3 years ago in what state Symbian is today and in what condition Nokia is, and no that's all to do with the managment then, Elop is either trying to save the little there's left or throw it in to the sharks. Makes no difference.
/rant