yes i think that it's a given that hardware will be shown off during the morning to the whole world. there's no mention of streaming but i'd bet that they will be streaming it. no one does a major announcement these days w/o streaming coverage so i wouldn't worry about that.
as far as the evening session, i'm making some guesses based on the info that i saw:
1) the event itself is 7p-9:30p PST, yet the door opens at 6pm and the actual presentation is only 30 min from 7-7:30p. based on that, i'm guessing/hoping that there will be hardware devices available there.
2) on the registration confirmation screen, at the bottom, it says "please no recording" which again makes me believe that there will be hardware there on hand, or something else that they don't want to make available to the general public yet.
of course, i could be completely wrong w/these guesses but hey one can dream right?