I'm excited that OneDrive will allow Co-Authors of folders! My wife and I share photo folders that go all the way back to 2004, but since the reside on my SkyDrive and they are only Shared with her, she cannot select them as a folder as I can on her devices. So, that will be an immediate improvement that has kind of irked me. Same will help with music.
Although I don't play Halo, I think the Cortana idea is excellent. Not until I listened to the last WPCentral Podcast did I understand the reference, but that alone could be a huge selling point to some folks looking to switch from Android. I have folks that sitting my car that are amazed by the Bluetooth voice technology whenever I text or call someone without taking my hands off the wheel (I'm sure their iphones and droids would do the same if they knew how to hook it up). I can only imagine what they would do if the voice sounded like something out of Halo. They'd probably ask me to drive them to the nearest retailer to trade in their inferior phones
LocoKip