I am not sure if the widescreen carried over to the 3-series or not. I do not have any pics for you, sorry. But the nav system can't possibly be a mistake, albeit it is a costly option, I am sure that it will prove invaluable on road trips and what not. IMHO, no BMW option is a mistake, it is the firs step in differentiating your car from other peolpe's.
I almost forgot, good luck with the wait, it was tortue for me, but visiting the forums helps to ease the pain.