Microsoft (some time this year) are releasing a huge 84" interactive screen that doubles as a touchscreen computer and TV.
Multi-touch and pen (stylus) input are both available along with cameras and voice control.
What this is, is a Windows 10 PC that also has Wi-Fi and NFC support and it's probably going to be most used by businesses. It can double as a wipe board, is connected to the Internet and can link with applications such as OneNote to share work as it is created.
We can't wait to get our hands on one!