At the Windows 10 event today, Microsoft announced Surface Hub. It is intended to be used for collaborative meetings, brainstorming, and other group activities. It integrates with OneNote (for whiteboarding), Skype for Business (previously Lync) (for remote conferencing), and supports ink and touch as input methods.
Price not disclosed. Availability due later in 2015.
It is weird to me that Microsoft chose the name they did, since there is also a Surface Hub app for the Surface Pro. Perhaps that name will disappear in a future iteration.