Microsoft is holding a big press event in Amsterdam tomorrow showcasing all the launch titles for the 360. There isn't one killer app there that will sell the console like the N64 had with Mario 64 for example, but everything is looking nice, even if the visual quality between titles is a little rocky (some titles could easily look better than what they do, but at least they will all have a good framerate).
Microsoft and all it's partners are racing to get everything out the door intime for launch. Perfect Dark Zero for example has cut back on the 50 player multiplayer to 32 in order to make launch.