Yesterday, Microsoft hosted a Windows Phone Summit in San Francisco where they took the wraps off of Windows Phone 8. Pretty much all of the rumors were confirmed: Existing devices will not be able to upgrade but are instead getting the incremental Windows Phone 7.8 update, some new enterprise features are headed to the platform, and the OS will support some new hardware improvements, among other things.

The event was livestreamed, but if you missed it, you can watch a video of the entire event courtesy of Channel 9: