During a session on notifications at Build today, Microsoft's Thomas Fennel strongly hinted that the company is considering a notification center for Windows Phone.
"Because we ran out of time," admitted Fennel, after being questioned on the lack of notification center by an audience member. "It's very very important to me
we get tons of feedback from developers that they want something like that as well. I promise we're thinking very very hard on that one." The lack of notification center is evident when a notification is triggered and disappears, especially when a Live Tile is not enabled for that particular app.