Windows Phone 8.1 - will start to ship late April
Update for Windows 8.1 - coming April 8th or today on MSDN
“Cortana” Personal Assistant - Beta
Windows Universal Apps
WinJS as an Open Source project - available today
VS 2013 Update 2RC - available today
Windows Universal Apps running on XBox
Kinect V2 for Windows
“Internet of Things” version of Windows
Nokia 930 - selling globally starting in June
Imaging SDK 1.2 and SensorCore SDK