If you weren't able to make it to MIX last week, you missed a couple of great presentations by Angus Logan and Keiji Kanazawa which delved into some of the cool work that we and others within Windows Live are delivering. Luckily, all of the sessions are recorded and placed online so even if you missed them, you can easily watch them. The relevant sessions are:
I personally attended both talks and very much enjoyed both of them. I encourage you to watch them and then give us any feedback that you might have.