On April 9th & 10th, Unity and Microsoft will be hosting a Building Windows Games with Unity event. This event is a free, two-day training being held in Mountain View, California in the United States but will also be live streamed online on Channel 9. The event is intended to help game builders and designers to port their Unity games to be published into the Windows Store and Windows Phone store.
You can go ahead and use the .ics calendar invite to put it on your calendar.
If you can't make it in person, no worries. You can view it live online. No need to sign up, just check out the online page on the day of the event. Content includes: