A few questions... first, i am trying to add twitter to notification center so i can get my @ replies there, but im not seeing twitter listed underneath the notification center in settings. i have twitter for iphone...how do i add it with the other apps w/ notification center? also, for iMessage, how do you add people? you can use their apple id e-mail right? but how do you add them to your phone or whatever? is that possible, or do you just type in their apple ID when you go to send a message? thanks in advance!