Microsoft's surprise hit: an 84-inch pen display for the office

If you ask me, though, one of the most impressive things the company announced was actually a giant pen display meant for the workplace. The Surface Hub, as it’s called, is an 84-inch, 4K screen that’s destined to live in conference rooms, making it easier for employees to brainstorm together, even over conference calls.

When you’re working at a startup will millions of dollars to waste and a whiteboard just won’t do…